title: Thirty Meter Telescope

text: In 2010, a consortium of Indian Astronomy Research Institutes (IIA, IUCAA and ARIES) joined TMT as an observer, subject to approval of funding from the Indian government. Two years later, India and China became partners with representatives on the TMT board. Both countries agreed to share the telescope construction costs, expected to top $1 billion. India became a full member of the TMT consortium in 2014. In 2019 the India-based company Larsen & Toubro (L&T) were awarded the contract to build the segment support assembly (SSA), which “are complex optomechanical sub-assemblies on which each hexagonal mirror of the 30-metre primary mirror, the heart of the telescope, is mounted”. The IndiaTMT Optics Fabricating Facility (ITOFF) will be constructed at the Indian Institute of Astrophysics campus in the city of Hosakote, near Bengaluru. India will also supply 80 of the 492 mirror segments for the TMT. A.N. Ramaprakash, the associate programme director of India-TMT, stated; "All sensors, actuators and SSAs for the whole telescope are being developed and manufactured in India, which will be put together in building the heart of TMT", also adding; "Since it is for the first time that India is involved in such a technically demanding astronomy project, it is also an opportunity to put to test the abilities of Indian scientists and industries, alike."


title: Thirty Meter Telescope

text: The continued financial commitment from the Canadian government had been in doubt due to economic pressures. Nevertheless, on April 6, 2015, Prime Minister Stephen Harper announced that Canada would commit $243.5 million over a period of 10 years. The telescope's unique enclosure was designed by Dynamic Structures Ltd. in British Columbia. In a 2019 online petition, a group of Canadian academics called on succeeding Canadian Prime Minister Justin Trudeau together with Industry Minister Navdeep Bains and Science Minister Kirsty Duncan to divest Canadian funding from the project. The Canadian astronomy community has named TMT its top facility priority for the decade ahead.


title: Thirty Meter Telescope

text: The TMT would be housed in a general-purpose observatory capable of investigating a broad range of astrophysical problems. The total diameter of the dome will be with the total dome height at (comparable in height to an eighteen-storey building). The total area of the structure is projected to be within a complex.


title: Thirty Meter Telescope

text: The centerpiece of the TMT Observatory is to be a Ritchey-Chrétien telescope with a diameter primary mirror. This mirror is to be segmented and consist of 492 smaller (1.4 metre; 4'6"), individual hexagonal mirrors. The shape of each segment, as well as its position relative to neighboring segments, will be controlled actively.


title: Thirty Meter Telescope

text: A secondary mirror is to produce an unobstructed field-of-view of 20 arcminutes in diameter with a focal ratio of 15. A 3.5 × 2.5 metre (12' x 8') flat tertiary mirror is to direct the light path to science instruments mounted on large Nasmyth platforms. The telescope is to have an alt-azimuth mount. Target acquisition and system configuration capabilities need to be achieved within 5 minutes, or ten minutes if relocating to a newer device. To achieve these time limitations the TMT will use a software architecture linked by a service based communications system. The moving mass of the telescope, optics, and instruments will be 1430 tonnes. The design of the facility descends from the Keck Observatory.


title: Thirty Meter Telescope

text: Integral to the observatory is a Multi-Conjugate Adaptive Optics (MCAO) system. This MCAO system will measure atmospheric turbulence by observing a combination of natural (real) stars and artificial laser guide stars. Based on these measurements, a pair of deformable mirrors will be adjusted many times per second to correct optical wave-front distortions caused by the intervening turbulence.


title: Thirty Meter Telescope

text: This system will produce diffraction-limited images over a 30-arc-second diameter field-of-view, which means that the core of the point spread function will have a size of 0.015 arc-second at a wavelength of 2.2 micrometers, almost ten times better than the Hubble Space Telescope.


title: Thirty Meter Telescope

text: In 2008, the TMT corporation selected two semi-finalists for further study, Mauna Kea and Cerro Amazones. In July 2009, Mauna Kea was selected. Once TMT selected Mauna Kea, the project began a regulatory and community process for approval. Mauna Kea is ranked as one of the best sites on Earth for telescope viewing and is home to 13 other telescopes built at the summit of the mountain, within the Mauna Kea Observatories grounds. Telescopes generate money for the big island, with millions of dollars in jobs and subsidies gained by the state. The TMT would be one of the most expensive telescopes ever created.


title: Thirty Meter Telescope

text: However, the proposed construction of the TMT on Mauna Kea sparked protests and demonstrations across the state of Hawaii. Mauna Kea is the most sacred mountain in Hawaiian culture as well as conservation land held in trust by the state of Hawaii.


title: Thirty Meter Telescope

text: In 2010 Governor Linda Lingle of the State of Hawaii signed off on an environmental study after 14 community meetings. The BLNR held hearings on December 2 and December 3, 2010, on the application for a permit.


title: Thirty Meter Telescope

text: On February 25, 2011, the board granted the permits after multiple public hearings. This approval had conditions, in particular, that a hearing about contesting the approval be heard. A contested case hearing was held in August 2011, which led to a judgment by the hearing officer for approval in November 2012. The telescope was given approval by the state Board of Land and Natural Resources in April 2013. This process was challenged in court with a lower court ruling in May 2014. The Intermediate Court of Appeals of the State of Hawaii declined to hear an appeal regarding the permit until the Hawaii Department of Land and Natural Resources first issued a decision from the contested case hearing that could then be appealed to the court.


title: Thirty Meter Telescope

text: The dedication and ground-breaking ceremony was held, but interrupted by protesters on October 7, 2014. The project became the focal point of escalating political conflict, police arrests and continued litigation over the proper use of conservation lands. Native Hawaiian cultural practice and religious rights became central to the opposition, with concerns over the lack of meaningful dialogue during the permitting process. In late March 2015, demonstrators again halted the construction crews. On April 2, 2015, about 300 protesters gathered on Mauna Kea, some of them trying to block the access road to the summit; 23 arrests were made. Once the access road to the summit was cleared by the police, about 40 to 50 protesters began following the heavily laden and slow-moving construction trucks to the summit construction site.


title: Thirty Meter Telescope

text: On April 7, 2015, the construction was halted for one week at the request of Hawaii state governor David Ige, after the protest on Mauna Kea continued. Project manager Gary Sanders stated that TMT agreed to the one-week stop for continued dialogue; Kealoha Pisciotta, president of Mauna Kea Anaina Hou, one of the organizations that have challenged the TMT in court, viewed the development as positive but said opposition to the project would continue. On April 8, 2015, Governor Ige announced that the project was being temporarily postponed until at least April 20, 2015. Construction was set to begin again on June 24, though hundreds of protesters gathered on that day, blocking access to the construction site for the TMT. Some protesters camped on the access road to the site, while others rolled large rocks onto the road. The actions resulted in 11 arrests.


title: Thirty Meter Telescope

text: The TMT company chairman stated: "T.M.T. will follow the process set forth by the state." A revised permit was approved on September 28, 2017, by the Hawaii Board of Land and Natural Resources.


title: Thirty Meter Telescope

text: On December 2, 2015, the Hawaii State Supreme Court ruled the 2011 permit from the State of Hawaii Board of Land and Natural Resources (BLNR) was invalid ruling that due process was not followed when the Board approved the permit before the contested case hearing. The high court stated: "BLNR put the cart before the horse when it approved the permit before the contested case hearing," and "Once the permit was granted, Appellants were denied the most basic element of procedural due process – an opportunity to be heard at a meaningful time and in a meaningful manner. Our Constitution demands more".


title: Thirty Meter Telescope

text: In March 2017, the BLNR hearing officer, retired judge Riki May Amano, finished six months of hearings in Hilo, Hawaii, taking 44 days of testimony from 71 witnesses.


title: Thirty Meter Telescope

text: On September 28, 2017, the BLNR, acting on Amano's report, approved, by a vote of 5-2, a Conservation District Use Permit (CDUP) for the TMT. Numerous conditions, including the removal of three existing telescopes and an assertion that the TMT is to be the last telescope on the mountain, were attached to the permit.


title: Thirty Meter Telescope

text: On October 30, 2018, the Supreme Court of Hawaii ruled 4-1, that the revised permit was acceptable, allowing construction to proceed. On July 10, 2019, Hawaii Gov. David Ige and the Thirty Meter Telescope International Observatory jointly announced that construction would begin the week of July 15, 2019.


title: Thirty Meter Telescope

text: On July 15, 2019, renewed protests blocked the access road, again preventing construction from commencing. On July 17, 38 protestors were arrested, all of whom were kupuna (elders) as the blockage of the access road continued. The blockade lasted 4 weeks and shut down all 12 observatories on Mauna Kea, the longest shut down in the 50-year history of the observatories. The full shut down ended when state officials brokered a deal that included building a new road around the campsite of the demonstrations and providing a complete list of vehicles accessing the road to show they are not associated with the TMT. The protests have become the latest fight for indigenous rights and become a field-defining moment for astronomy. While there is both Native Hawaiian and non native Hawaiian support for the TMT, a substantial percentage of native Hawaiians oppose the construction and see the proposal itself as a continued disregard to their basic rights. The 50 years of protests against the use of Mauna Kea has drawn into question the ethics of conducting research with telescopes on the mountain. The controversy is about more than the construction and is about generations of conflict between Native Hawaiians, the U.S. Government and private interests. The American Astronomical Society stated through their Press Officer, Rick Fienberg; "The Hawaiian people have numerous legitimate grievances concerning the way they’ve been treated over the centuries. These grievances have simmered for many years, and when astronomers announced their intention to build a new giant telescope on Maunakea, things boiled over". On July 18, 2019, an online petition titled "Impeach Governor David Ige" was posted to Change.org. The petition has gathered over 25,000 signatures. The governor and others in his administration received death threats over the construction of the telescope.


title: Thirty Meter Telescope

text: On December 19, 2019, Hawaii Governor David Ige announced that the state would reduce its law enforcement personnel on Mauna Kea. At the same time, the TMT project stated it was not prepared to start construction anytime soon.


title: Thirty Meter Telescope

text: Early in 2020, TMT and the Giant Magellan Telescope (GMT) jointly presented their science and technical readiness to the U.S. National Academies Astro2020 panel. Chile is the site for GMT in the south and Mauna Kea is being considered as the primary site for TMT in the north. The panel will produce a series of recommendations for implementing a strategy and vision for the coming decade of U.S. Astronomy & Astrophysics frontier research and prioritize projects for future funding.


title: Thirty Meter Telescope

text: In July 2020, TMT confirmed it would not resume construction on TMT until 2021, at the earliest. TMT continues to assess a number of factors impacting its timeline and schedule. The COVID-19 pandemic has resulted in TMT’s partnership working from home around the world and it continues to present a public health threat as well as travel and logistical challenges. The project is currently focused on doing the work it can safely do in its partner countries.


title: Thirty Meter Telescope

text: On August 13, 2020, the Speaker of the Hawaii House of Representatives, Scott Saiki announced that the National Science Foundation (NSF) has initiated an informal outreach process to engage stakeholders interested in the Thirty Meter Telescope project. After listening to and considering the stakeholders’ viewpoints, NSF will decide whether to initiate a formal federal environmental review process for TMT.


title: Thirty Meter Telescope

text: As of June 20, 2022, no further construction has been announced or initiated. Continued progress on instrument design, mirror casting & polishing, and other critical operational technicalities have been worked through or are currently being worked on. No specific timelines or schedules have been provided in regards to expected start/completion dates of additional construction at this time.


title: Iannis Xenakis

text: Giannis Klearchou Xenakis (also spelled for professional purposes as Yannis or Iannis Xenakis; , ; 29 May 1922 – 4 February 2001) was a Romanian-born Greek-French avant-garde composer, music theorist, architect, performance director and engineer.


title: Iannis Xenakis

text: After 1947, he fled Greece, becoming a naturalised citizen of France eighteen years later. Xenakis pioneered the use of mathematical models in music such as applications of set theory, stochastic processes and game theory and was also an important influence on the development of electronic and computer music. He integrated music with architecture, designing music for pre-existing spaces, and designing spaces to be integrated with specific music compositions and performances.


title: Iannis Xenakis

text: Among his most important works are "Metastaseis" (1953–54) for orchestra, which introduced independent parts for every musician of the orchestra; percussion works such as "Psappha" (1975) and "Pléïades" (1979); compositions that introduced spatialization by dispersing musicians among the audience, such as "Terretektorh" (1966); electronic works created using Xenakis's UPIC system; and the massive multimedia performances Xenakis called "polytopes", that were a summa of his interests and skills.


title: Iannis Xenakis

text: Among the numerous theoretical writings he authored, the book "" (French edition 1963, English translation 1971) is regarded as one of his most important. As an architect, Xenakis is primarily known for his early work under Le Corbusier: the priory of Sainte-Marie de La Tourette, on which the two collaborated, and the Philips Pavilion at Expo 58, which Xenakis designed by himself.


title: Iannis Xenakis

text: Giannis Klearchou Xenakis was born in Brăila, Romania—the site of a large Greek community, as the eldest son of Greek parents; Klearchos Xenakis, a businessman from Euboea who was managing director of an English export-import agency and one of the richest men in the city, and Fotini Pavlou from Lemnos, a pianist who also spoke German and French. His two younger brothers were Jason, who became a philosophy professor in the United States and Greece and , an architect, urban planner and artist.


title: Iannis Xenakis

text: His parents were both interested in music, and it was Pavlou who encouraged the young child to learn more about it: the young Giannis was given a flute by his mother, and the family visited the Bayreuth Festival several times, due to his father's interest in opera. Her early death in 1927, when Xenakis was five years old, was a traumatic experience that, in his own words, "deeply scarred" the future composer. She had previously been infected from measles and died after giving birth to a stillborn daughter.


title: Iannis Xenakis

text: He was subsequently educated by a series of English, French, and German governesses, and then, in 1932, sent to Greece to study at the Anargyrio-Korgialenio boarding school on the Aegean island of Spetses. He sang in the school's boys' choir, where the repertoire included works by Palestrina, and Mozart's "Requiem", which Xenakis memorized in its entirety.


title: Iannis Xenakis

text: It was also at the Spetses school that Xenakis studied notation and solfège, being introduced to the music of Ludwig van Beethoven and Johannes Brahms and became enamoured of Greek traditional and church music. At the same time, he discovered the writer Homer and had a habit of visiting museums.


title: Iannis Xenakis

text: In 1938, after graduating from the school, Xenakis moved to Athens to prepare for entrance exams at its National Technical University, also studying Ancient Greek. He was encouraged by his friends and family to do so due to his interests in physics and mathematics. Although he intended to study architecture and engineering, he also took lessons in harmony and counterpoint with Aristotelis Koundouroff. In 1940, he successfully passed the exams, but his studies were cut short by the Greco-Italian War, which began with the Italian invasion on 28 October 1940. Although Greece eventually won the war, it was not long before the German army joined the Italians in the Battle of Greece, in April 1941.


title: Iannis Xenakis

text: This led to the Axis occupation of Greece during World War II, which lasted until late 1944, when the Allies began their drive across Europe, forcing the Axis forces to withdraw. Xenakis joined the National Liberation Front early during the war, participating in mass protests and demonstrations, and later becoming part of armed resistance — this last step was a painful experience Xenakis refused to discuss until much later in life.


title: Iannis Xenakis

text: After the Axis forces left, Churchill ordered that British forces step in to help restore the Greek monarchy; they were opposed by the Democratic Army of Greece, and the country plunged into a civil war. In December 1944, during the period of Churchill's martial law,


title: Iannis Xenakis

text: Xenakis (who was by then a member of the communist students' company of the left-wing "Lord Byron" faction of ELAS) became involved in street fighting against British tanks. He was wounded and facially disfigured when shrapnel from a tank blast hit his cheek and left eye, which was blinded; the fact that Xenakis survived the injury has been described as a miracle.


title: Iannis Xenakis

text: The Technical University operated intermittently during these years. Despite this, and Xenakis's other activities, he was able to graduate in 1947, with a degree in civil engineering.


title: Iannis Xenakis

text: Xenakis was then conscripted into the national armed forces. Around 1947 the Greek government began arresting former resistance members that were left-wing oriented and sending them to prison. Xenakis, fearing for his life, went into hiding. With the help of his father and others, he fled Greece through Italy by using a fake passport. On 11 November 1947 he arrived in Paris. In a late interview, Xenakis admitted to feeling tremendous guilt at leaving his country, and that guilt was one of the sources of his later devotion to music:


title: Iannis Xenakis

text: For years I was tormented by guilt at having left the country for which I'd fought. I left my friends—some were in prison, others were dead, some managed to escape. I felt I was in debt to them and that I had to repay that debt. And I felt I had a mission. I had to do something important to regain the right to live. It wasn't just a question of music—it was something much more significant.


title: Iannis Xenakis

text: In the meantime, in Greece he was sentenced in absentia to death by the right-wing administration. The sentence was commuted to ten years' imprisonment in 1951, and only lifted some 23 years later, after the fall of the Greek junta in 1974. He later returned the same year.


title: Iannis Xenakis

text: Although he was an illegal immigrant in Paris, Xenakis was able to get a job at Le Corbusier's architectural studio. He worked as an engineering assistant at first, but quickly rose to performing more important tasks, and eventually to collaborating with Le Corbusier on major projects. These included a kindergarten on the roof of an apartment block in Nantes (Rezé), the Unité d'Habitation of Nantes-Rezé, parts of government buildings in Chandigarh, India, the "undulatory glass surfaces" of Sainte Marie de La Tourette, a Dominican priory in a valley near Lyon, and the Philips Pavilion at Expo 58—the latter project was completed by Xenakis alone from a basic sketch by Le Corbusier. The experience Xenakis gained played a major role in his music: important early compositions such as "Metastaseis" (1953–54) were based directly on architectural concepts. At the same time, he dropped the "G" from his professional name to get the name he is most commonly known by, "Iannis".


title: Iannis Xenakis

text: At the same time, while working for Le Corbusier, Xenakis was studying harmony and counterpoint, and composing. He worked long and hard, frequently far into the night, and sought guidance from a number of teachers, most of whom, however, ultimately rejected him. Such was the case with Nadia Boulanger, who was the first person Xenakis approached about lessons. He then tried studying with Arthur Honegger, whose reaction to Xenakis's music was unenthusiastic. As Xenakis recounted in a 1987 interview, Honegger dismissed a piece which included parallel fifths and octaves as "not music". Xenakis, who was by that time well acquainted with music of Debussy, Béla Bartók, and Stravinsky, all of whom used such devices and much more experimental ones, was furious and left to study with Darius Milhaud, but these lessons also proved fruitless. Annette Dieudonné, a close friend of Boulanger's, then recommended that Xenakis try studying with Olivier Messiaen. Xenakis approached Messiaen for advice on whether he once again start studying harmony and counterpoint. Messiaen later recalled:


title: Iannis Xenakis

text: I understood straight away that he was not someone like the others. [...] He is of superior intelligence. [...] I did something horrible which I should do with no other student, for I think one should study harmony and counterpoint. But this was a man so much out of the ordinary that I said... No, you are almost thirty, you have the good fortune of being Greek, of being an architect and having studied special mathematics. Take advantage of these things. Do them in your music.


title: Iannis Xenakis

text: Francisco Estévez has described this work as "mathematical formulas translated . . . into beautiful, exciting, and above all, convincing music."


title: Iannis Xenakis

text: Xenakis regularly attended Messiaen's classes from 1951 until 1953. Messiaen and his students studied music from a wide range of genres and styles, with particular attention to rhythm. Xenakis's compositions from 1949 until 1952 were mostly inspired by Greek folk melodies, as well as Bartók, Ravel, and others; after studying with Messiaen, he discovered serialism and gained a deep understanding of contemporary music (Messiaen's other pupils at the time included Karlheinz Stockhausen and Jean Barraqué, among others). Messiaen's modal serialism was an influence on Xenakis's first large-scale work, "Anastenaria" (1953–54): a triptych for choir and orchestra based on an ancient Dionysian ritual. The third part of the triptych, "Metastaseis", is generally regarded as the composer's first mature piece; it was detached from the triptych to mark the beginning of the "official" Xenakis oeuvre. He was considered to be part of the Darmstadt School, but later broke with the group of composers, who he believed focused too heavily on serialism and controlling all aspects of composition. In an article titled “The Crisis of Serial Music” he specifically accused Boulez and Stockhausen of steering music into dead-end.


title: Iannis Xenakis

text: On 3 December 1953, Xenakis married the journalist and writer Françoise Gargouïl, who he met in 1950. Their daughter Mâkhi, who later became a painter and sculptor, was born in 1956 in Paris. In late 1954, with Messiaen's support, Xenakis was accepted into the Groupe de Recherches de Musique Concrète; an organization established by Pierre Schaeffer and Pierre Henry, dedicated to studying and producing electronic music of the musique concrète variety. Shortly after that Xenakis met conductor Hermann Scherchen, who was immediately impressed by the score of "Metastaseis" and offered his support. Although Scherchen did not premiere that particular work, he did give performances of later pieces by Xenakis, and the relationship between the conductor and the composer was of vital importance for the latter.


title: Iannis Xenakis

text: By the late 1950s Xenakis slowly started gaining recognition in artistic circles. In 1957, he received his first composition award, from the European Cultural Foundation, and in 1958 the first official commission came through, from Service de Recherche of Radio France. In the same year, he produced a musique concrète piece, "Concret PH", for the Philips Pavilion. In 1960, Xenakis was well known enough to receive a commission from UNESCO for a soundtrack for a documentary film by Enrico Fulchignoni.


title: Iannis Xenakis

text: After leaving Le Corbusier's studio in 1959, Xenakis supported himself by composition and teaching, and quickly became recognized as one of the most important European composers of his time. In 1965, he became a French citizen. He became especially known for his musical research in the field of computer-assisted composition, for which he founded the Equipe de Mathématique et Automatique Musicales (EMAMu) in 1966 (known as CEMAMu: Centre d’Etudes de Mathématique et Automatique Musicales, since 1972). He taught at Indiana University from 1967 until 1972 (and established a studio similar to EMAMu there), and worked as visiting professor at the Sorbonne from 1973 until 1989.


title: Iannis Xenakis

text: Xenakis frequently lectured (for instance, from 1975 to 1978 he was Professor of Music at Gresham College, London, giving free public lectures), and teaching composition. His works were performed at numerous festivals worldwide, including the Shiraz Arts Festival in Iran. His notable students include Pascal Dusapin, Henning Lohner, Miguel Ángel Coria, Susan Frykberg, Norma Tyer, Robert Carl, and Julio Estrada. In 1983, he was elected as a member of the Académie Française.


title: Iannis Xenakis

text: In addition to composing and teaching, Xenakis also wrote a number of articles and essays on music. Of these, Formalized Music (1963) became particularly known and was later expanded into a full book. A collection of texts on applications of stochastic processes, game theory and computer programming in music, it was later revised, expanded and translated into English as "Formalized Music: Thought and Mathematics in Composition" (1971) during Xenakis's tenure at Indiana University.


title: Iannis Xenakis

text: Xenakis was an atheist. Polish musicologist Zbigniew Skowron, describing "Aïs", wrote "In accordance with his atheist views, Xenakis emphasizes the finality of death as the ultimate event of human life, and this is probably why wild shrieks and moans punctuate his score". Xenakis himself wrote, "Man is one, indivisible, and total. He thinks with his belly and feels with his mind. I would like to propose what, to my mind, covers the term "music": ... 7. It is a mystical (but atheistic) asceticism ...".


title: Iannis Xenakis

text: Xenakis completed his last work, "O-mega" for percussion soloist and chamber orchestra, in 1997. His health had been getting progressively worse over the years, and by 1997 he was no longer able to work. In 1999, Xenakis was awarded the Polar Music Prize "for a long succession of forceful works, charged with sensitivity, commitment and passion, through which he has come to rank among the most central composers of our century in the realm of art music, exercising within its various fields an influence which cannot be readily overstated".


title: Iannis Xenakis

text: After several years of serious illness, on 1 February 2001 the composer lapsed into a coma. He died in his Paris home four days later, on 4 February, aged 78; and was shortly after cremated, with his ashes being given to his family. He was outlived by his wife, who died on 12 February 2018 in Courbevoie, and his daughter.


title: Iannis Xenakis

text: Specific examples of mathematics, statistics, and physics applied to music composition are the use of the statistical mechanics of gases in "Pithoprakta", statistical distribution of points on a plane in "Diamorphoses", minimal constraints in "Achorripsis", the normal distribution in "ST/10" and "Atrées", Markov chains in "Analogique", game theory in "Duel", "Stratégie", and "Linaia-agon", group theory in "Nomos Alpha" (for Siegfried Palm), set theory in "Herma" and "Eonta", and Brownian motion in "N'Shima". "Persephassa", commissioned by the Shiraz Arts Festival, was performed by Les Percussions de Strasbourg, receiving its world premiere in Persepolis in 1969. Subsequently, he was once again commissioned by the Shiraz Arts Festival and composed "Persepolis" for the occasion, a "polytope" composed specific to the historic site.


title: Iannis Xenakis

text: Although electroacoustic compositions represent only a small fraction of Xenakis's output, they are highly relevant to musical thinking in the late 20th century. Important works in this medium include "Concret PH" (1958), "Analogique B" (1958–59), "Bohor" (1962), "La légende d'Eer" (1977), "Mycenae-Alpha" (1978), "Voyage absolu des Unari vers Andromède" (1989), "Gendy301" (1991), and "S709" (1994).


title: Iannis Xenakis

text: By 1979, he had devised a computer system called UPIC, which could translate graphical images into musical results. "Xenakis had originally trained as an architect, so some of his drawings, which he called 'arborescences', resembled both organic forms and architectural structures." These drawings' various curves and lines that could be interpreted by UPIC as real time instructions for the sound synthesis process. The drawing is, thus, rendered into a composition. "Mycenae-Alpha" was the first of these pieces he created using UPIC as it was being perfected.


title: Iannis Xenakis

text: Xenakis also developed a stochastic synthesizer algorithm (used in GENDY), called "dynamic stochastic synthesis", where a polygonal waveform's sectional borders' amplitudes and distance between borders may be generated using a form of random walk to create both aleatoric timbres and musical forms. Further material may be generated by then refeeding the original waveform back into the function or wave forms may be superimposed. Elastic barriers or mirrors are used to keep the randomly generated values within a given finite interval, so as to not exceed limits such as the audible pitch range, avoid complete chaos (white noise), and to create a balance between stability and instability (unity and variety).


title: Iannis Xenakis

text: Despite Xenakis's reputation as a "mathematical" composer, his works are known for their power and physicality. Alex Ross wrote that Xenakis "produced some of the rawest, wildest music in history—sounds that explode around the ears. Rarefied methods were employed to release primordial energies." Ben Watson expressed admiration for the "terrifying emotional impact of [Xenakis'] sonic objectivity", describing his music as possessing "truly majestic otherness. It is an alien shard, glimmering in the heart of the West." Tom Service praised Xenakis' music for its "shattering visceral power" and "sheer, scintillating physicality", noting its "deep, primal rootedness in richer and older phenomena even than musical history: the physics and patterning of the natural world, of the stars, of gas molecules, and the proliferating possibilities of mathematical principles." Service described Xenakis as a composer "whose craggily, joyously elemental music turned collections of pitches and rhythms and instruments into a force of nature, releasing a power that previous composers had only suggested metaphorically but which he would realise with arguably greater clarity, ferocity, intensity than any musician, before or since," and suggested that his music is "expressive: not in a conventionally emotional way, perhaps, but it has an ecstatic, cathartic power. Xenakis's music – and its preternaturally brilliant performers – allows its listeners to witness seismic events close at hand, to be at the middle of a musical happening of cosmic intensity." Service concluded: "it took Xenakis for music to become nature. On holiday in Corsica, Xenakis would pilot his canoe into the teeth of the biggest storm he and his paddle could manage. When you're listening to his music, you also go out there into the eye of a musical storm that will invigorate, inspire, and awe. See you out there..."


title: Internally displaced person

text: An internally displaced person (IDP) is someone who is forced to leave their home but who remains within their country's borders. They are often referred to as refugees, although they do not fall within the legal definitions of a refugee.


title: Internally displaced person

text: At the end of 2014, it was estimated there were 38.2 million IDPs worldwide, the highest level since 1989, the first year for which global statistics on IDPs are available. As of 3 May 2022 the countries with the largest IDP populations were Ukraine (8 million), Syria (7.6 million), Ethiopia (5.5 million), the Democratic Republic of the Congo (5.2 million), Colombia (4.9 million), Yemen (4.3 million), Afghanistan (3.8 million), Iraq (3.6 million), Sudan (2.2 million), South Sudan (1.9 million), Pakistan (1.4 million), Nigeria (1.2 million) and Somalia (1.1 million).


title: Internally displaced person

text: The United Nations and the UNHCR support monitoring and analysis of worldwide IDPs through the Geneva-based Internal Displacement Monitoring Centre.


title: Internally displaced person

text: Whereas 'refugee' has an authoritative definition under the 1951 Refugee Convention, there is no universal legal definition of internally displaced persons (IDP); only a regional treaty for African countries (see Kampala Convention). However, a United Nations report, "Guiding Principles on Internal Displacement" uses the definition of:


title: Internally displaced person

text: persons or groups of persons who have been forced or obliged to flee or to leave their homes or places of habitual residence, in particular as a result of or in order to avoid the effects of armed conflict, situations of generalized violence, violations of human rights or natural or human-made disasters, and who have not crossed an internationally recognized State border.


title: Internally displaced person

text: While the above stresses two important elements of internal displacement (coercion and the domestic/internal movement), it is important to note that, rather than a strict definition, the Guiding Principles offer "a descriptive identification of the category of persons whose needs are the concern of the Guiding Principles". In this way, the document "intentionally steers toward flexibility rather than legal precision" as the words "in particular" indicate that the list of reasons for displacement is not exhaustive. However, as Erin Mooney has pointed out, "global statistics on internal displacement generally count only IDPs uprooted by conflict and human rights violations. Moreover, a recent study has recommended that the IDP concept should be defined even more narrowly, to be limited to persons displaced by violence." Thus, despite the non-exhaustive reasons of internal displacement, many consider IDPs as those who would be defined as refugees if they were to cross an international border, hence, the term refugees in all but name is often applied to IDPs.


title: Internally displaced person

text: It is very difficult to get accurate figures for internally displaced persons because populations are not constant. IDPs may be returning home while others are fleeing, others may periodically return to IDP camps to take advantage of humanitarian aid. While the case of IDPs in large camps such as those in Darfur, western Sudan, are relatively well-reported, it is very difficult to assess those IDPs who flee to larger towns and cities. It is necessary in many instances to supplement official figures with additional information obtained from operational humanitarian organizations on the ground. Thus, the 24.5 million figure must be treated as an estimate. Additionally, most official figures only include those displaced by conflict or natural disasters. Development-induced IDPs often are not included in assessments. It has been estimated that between 70 and 80% of all IDPs are women and children.


title: Internally displaced person

text: 50% of internally displaced people and refugees were thought to be in urban areas in 2010, many of them in protracted displacement with little likelihood of ever returning home. A 2013 study found that these protracted urban displacements had not been given due weight by international aid and governance as historically they had focused on rural cam displacement responses. The study argues that this protracted urban displacement needs a fundamental change in the approach to those who are displaced and their host societies. They note that re-framing responses to urban displacement will also involve human rights and development actors and local and national governments. They call for a change in the narrative around the issue is needed to reflect ingenuity and fortitude displayed by displaced populations, the opportunities for self-sufficiency and safety represented by urban areas, and that the displaced can make a contribution to their host societies. An updated country by country breakdown can be found online.


title: Internally displaced person

text: The problem of protecting and assisting IDPs is not a new issue. In international law it is the responsibility of the government concerned to provide assistance and protection for the IDPs in their country. However, as many of the displaced are a result of civil conflict and violence or where the authority of the central state is in doubt, there is no local authority willing to provide assistance and protection. It has been estimated that some 5 million IDPs in 11 countries are "without any significant humanitarian assistance from their governments." Under these circumstances rehabilitation policies on humanitarian grounds should be aimed at reducing inequality of opportunity among these vulnerable groups by integrating them into local social services and allowing them access to jobs, education, and healthcare opportunities; otherwise new conflicts might break out.


title: Internally displaced person

text: Unlike the case of refugees, there is no international humanitarian institution which has the overall responsibility of protecting and assisting the refugees as well as the internally displaced. A number of organizations have stepped into the breach in specific circumstances.


title: Internally displaced person

text: The Office of the United Nations High Commissioner for Refugees (UNHCR) was mandated by General Assembly Resolution 428 (V) of 14 December 1950 to "lead and coordinate international action for the worldwide protection of refugees and the resolution of refugee problems... guided by the 1951 United Nations Convention Relating to the Status of Refugees and its 1967 Protocol." The UNHCR has traditionally argued that it does not have an exclusive mandate for IDPs even though at least since 1972 it had relief and rehabillatation programs for those displaced within a country. Until the mid-2000s, it conditioned involvement to cases where there is a specific request by the UN Secretary General and with the consent of the State concerned it has been willing to respond by assisting IDPs in a given instance. In 2005 it was helping some 5.6 million IDPs (out of over 25 million), but only about 1.1 million in Africa.


title: Internally displaced person

text: In 2005, the UNHCR signed an agreement with other humanitarian agencies. "Under this agreement, UNHCR will assume the lead responsibility for protection, emergency shelter and camp management for internally displaced people." In 2019, UNHCR issued an updated IDP policy that reaffirms its commitment to engaging decisively and predictably in situations of internal displacement.


title: Internally displaced person

text: The International Committee of the Red Cross has a mandate of ensuring the application of international humanitarian law as it affects civilians in the midst of armed conflict. They have traditionally not distinguished between civilians who are internally displaced and those who remain in their homes. In a 2006 policy statement, the ICRC stated:


title: Internally displaced person

text: The ICRC's overall objective is to alleviate the suffering of people who are caught up in armed conflict and other situations of violence. To that end, the organization strives to provide effective and efficient assistance and protection for such persons, be they displaced or not, while taking into consideration the action of other humanitarian organizations. On the basis of its long experience in different parts of the world, the ICRC has defined an operational approach towards the civilian population as a whole that is designed to meet the most urgent humanitarian needs of both displaced persons and local and host communities.


title: Internally displaced person

text: However, its Director of Operations has earlier recognized that IDPs "deprived of shelter and their habitual sources of food, water, medicine and money, they have different, and often more urgent, material needs."


title: Internally displaced person

text: The previous system set up internationally to address the needs of IDPs was referred to as the collaborative approach as the responsibility for protecting and assisting IDPs was shared among the UN agencies, i.e. UNHCR, Unicef, WFP, UNDP, Office of the High Commissioner for Human Rights, the International Organization for Migration (IOM), the ICRC and international NGOs. Coordination is the responsibility of the UN Emergency Relief Coordinator and the Humanitarian Coordinator in the country concerned. They are assisted by the Inter-Agency Displacement Division, which was created in 2004 and is housed in the UN Office for the Coordination of Humanitarian Affairs (OCHA).


title: Internally displaced person

text: Nearly every UN and independent evaluation has found the collaborative approach deficient when it comes to IDPs. To begin with, there is no real focus of responsibility in the field for assisting and protecting... There is also no predictability of action, as the different agencies are free to pick and choose the situations in which they wish to become involved on the basis of their respective mandates, resources, and interests. In every new emergency, no one knows for sure which agency or combination thereof will become involved.In 2005 there was an attempt to fix the problem by giving sectoral responsibilities to different humanitarian agencies, most notably with the UNHCR taking on the responsibility for protection and the management of camps and emergency shelters. The "Forced Migration Review" stated that the "abnegation of responsibility is possible because there is no formal responsibility apportioned to agencies under the Collaborative Response, and thus no accountability when agencies renege on their promises."


title: Internally displaced person

text: Similarly, research on refugees have suggested a cross-sector collaboration as a key means to assist displaced people.


title: Internally displaced person

text: The cluster approach designates individual agencies as ‘sector leaders’ to coordinate operations in specific areas to try to plug those newly identified gaps. The cluster approach was conceived amid concerns about coordination and capacity that arose from the weak operational response to the crisis in Darfur in 2004 and 2005, and the critical findings of the Humanitarian Response Review (HRR) commissioned by the then ERC, Jan Egeland. Egeland called for strengthening leadership of the sectors, and introduced the concept of "clusters" at different levels (headquarters, regional, country and operational)’.


title: Internally displaced person

text: The cluster approach operates on the global and local levels. At the global level, the approach is meant to build up capacity in eleven key ‘gap’ areas by developing better surge capacity, ensuring consistent access to appropriately trained technical expertise and enhanced material stockpiles, and securing the increased engagement of all relevant humanitarian partners. At the field level, the cluster approach strengthens the coordination and response capacity by mobilizing clusters of humanitarian agencies (UN/Red Cross-Red Crescent/IOs/NGOs) to respond in particular sectors or areas of activity, each cluster having a clearly designated and accountable lead, as agreed by the HC and the Country Team. Designated lead agencies at the global level both participate directly in operations, but also coordinate with and oversee other organizations within their specific spheres, reporting the results up through a designated chain of command to the ERC at the summit. However, lead agencies are responsible as "providers of last resort", which represents the commitment of cluster leads to do their utmost to ensure an adequate and appropriate response in their respective areas of responsibility. The cluster approach was part of a package of reforms accepted by the IASC in December 2005 and subsequently applied in eight chronic humanitarian crises and six sudden-onset emergencies. However, the reform was originally rolled out and evaluated in four countries: DRC, Liberia, Somalia and Uganda.


title: Internally displaced person

text: IASC Principles deemed it unnecessary to apply the cluster approach to four sectors where no significant gaps were detected: a) food, led by WFP; b) refugees, led by UNHCR; c) education, led by UNICEF; and d) agriculture, led by FAO.


title: Internally displaced person

text: Unlike the case of refugees, there is no international universal treaty which applies specifically to IDPs. Only a regional treaty for African countries has been established (see Kampala Convention). Some other countries have advocated re-thinking the definitions and protections for refugees to apply to IDPs, but so far no solid actions have come to fruition. Recognizing the gap, the UN Secretary-General, Boutros-Ghali appointed Francis Deng in 1992 as his representative for internally displaced persons. Besides acting as an advocate for IDPs, Deng set out in 1994, at the request of the UN General Assembly to examine and bring together existing international laws which relating to the protection of IDPs. The result of this work was the document, "Guiding Principles on Internal Displacement".


title: Internally displaced person

text: The Guiding Principles lay out the responsibilities of states before displacement – that is, to prevent displacement – during and after displacement. They have been endorsed by the UN General Assembly, the African Commission on Human and People's Rights (ACHPR) and by the signatories to the 2006 Pact on Security, Stability and Development in the Great Lakes Region, which include Sudan, DRC and Uganda.


title: Internally displaced person

text: The Guiding Principles, however, are non-binding. As Bahame Tom Nyanduga, Special Rapporteur on Refugees, IDPs and Asylum Seekers in Africa for the ACHPR has stated, "the absence of a binding international legal regime on internal displacement is a grave lacuna in international law."


title: Internally displaced person

text: In September 2004 the Secretary-General of the UN showed the continuing concern of his office by appointing Walter Kälin as his Representative on the Human Rights of Internally Displaced Persons. Part of his mandate includes the promoting of the Guiding Principles.


title: Internally displaced person

text: In so-called "post-conflict" situations, there has traditionally been an emphasis in the international community to seek to return to the pre-war status quo. However, opinions are gradually changing, because violent conflict destroys political, economic and social structures and new structures develop as a result, quite often irreversibly. Furthermore, returning to the pre-war status-quo may actually be undesirable if pre-war structures led to the conflict in the first place, or prevented its early resolution. IDPs' and refugees' right of return can represent one of the most complex aspects of this issue.


title: Internally displaced person

text: Normally, pressure is applied by the international community and humanitarian organization to ensure displaced people are able to return to their areas of origin and the same property. The UN Principles for Housing and Property Restitution for Refugees and IDPs, otherwise known as the Pinheiro Principles, provides guidance on the management of the technical and legal aspects of housing, land and property (HLP) restitution. Restitution rights are of key importance to IDPs and refugees around the world, and important to try preventing aggressors benefiting from conflict. However, without a clear understanding of each local context, full restitution rights can be unworkable and fail to protect the people it is designed to protect for the following reasons, refugees and IDPs:


title: Internally displaced person

text: Researchers at the Overseas Development Institute stress the need for humanitarian organization to develop a greater expertise in these issues, using experts who have a knowledge in both humanitarian and land and property issues and so provide better advice to state actors seeking to resolve these issues. The ODI calls on humanitarian agencies to develop an awareness of sustainable reintegration as part of their emphasis on returning IDPs and refugees home. Legal advice needs to be provided to all parties involved even if a framework is created in which to resolve these issues.


title: Celtiberians

text: The Celtiberians were a group of Celts and Celticized peoples inhabiting an area in the central-northeastern Iberian Peninsula during the final centuries BCE. They were explicitly mentioned as being Celts by several classic authors (e.g. Strabo). These tribes spoke the Celtiberian language and wrote it by adapting the Iberian alphabet, in the form of the Celtiberian script. The numerous inscriptions that have been discovered, some of them extensive, have allowed scholars to classify the Celtiberian language as a Celtic language, one of the Hispano-Celtic (also known as Iberian Celtic) languages that were spoken in pre-Roman and early Roman Iberia. Archaeologically, many elements link Celtiberians with Celts in Central Europe, but also show large differences with both the Hallstatt culture and La Tène culture.


title: Celtiberians

text: There is no complete agreement on the exact definition of Celtiberians among classical authors, nor modern scholars. The Ebro river clearly divides the Celtiberian areas from non-Indo-European speaking peoples. In other directions, the demarcation is less clear. Most scholars include the Arevaci, Pellendones, Belli, Titti and Lusones as Celtiberian tribes, and occasionally the Berones, Vaccaei, Carpetani, Olcades or Lobetani.


title: Celtiberians

text: In 195 BC, part of Celtiberia was conquered by the Romans, and by 72 BC the entire region had become part of the Roman province of Hispania Citerior. The subjugated Celtiberians waged a protracted struggle against the Roman conquerors, staging uprisings in 195–193 BC, 181–179 BC, 153–151 BC, and 143–133 BC. In 105 BC, Celtiberian warriors drove the Germanic Cimbri from Spain in the Cimbrian War (113–101 BC) and also played an important role in the Sertorian War (80–72 BC).


title: Celtiberians

text: The term "Celtiberi" appears in accounts by Diodorus Siculus, Appian and Martial who recognized intermarriage between Celts and Iberians after a period of continuous warfare, though Barry Cunliffe says "this has the ring of guesswork about it." Strabo just saw the Celtiberians as a branch of the "Celti". Pliny the Elder thought that the original home of the Celts in Iberia was the territory of the Celtici in the south-west, on the grounds of an identity of sacred rites, language, and the names of cities.


title: Celtiberians

text: Strabo cites Ephorus's belief that there were Celts in the Iberian peninsula as far as Cadiz. The material culture of the north-western regions of the Iberian Peninsula showed continuity from the end of the Bronze Age (c. 9th century BC) until it was subsumed by Roman culture (c. 1st century BC). It is associated with the Celtic tribal groups the Gallaecians and the Astures. The population predominantly practiced transhumant cattle-herding, protected by a warrior elite, similar to those in other areas of Atlantic Europe, centered in the hill-forts, locally termed "castros", that controlled small grazing territories. Settlements of circular huts survived until Roman times across the north of Iberia, from Northern Portugal, Asturias and Galicia through Cantabria and northern Leon to the Ebro River.


title: Celtiberians

text: Celtic presence in Iberia likely dates to as early as the 6th century BC, when the "castros" evinced a new permanence with stone walls and protective ditches. Archaeologists Martín Almagro Gorbea and Alvarado Lorrio recognize the distinguishing iron tools and extended family social structure of developed Celtiberian culture as evolving from the archaic "castro" culture which they consider "proto-Celtic".


title: Celtiberians

text: Archaeological finds identify the culture as continuous with the culture reported by Classical writers from the late 3rd century onwards (Almagro-Gorbea and Lorrio). The ethnic map of Celtiberia was highly localized however, composed of different tribes and "nations" from the 3rd century centered upon fortified "oppida" and representing a wide-ranging degree of local assimilation with the autochthonous cultures in a mixed Celtic and Iberian stock.


title: Celtiberians

text: The cultural stronghold of Celtiberians was the northern area of the central "meseta" in the upper valleys of the Tagus and Douro east to the "Iberus" (Ebro) river, in the modern provinces of Soria, Guadalajara, Zaragoza and Teruel. There, when Greek and Roman geographers and historians encountered them, the established Celtiberians were controlled by a military aristocracy that had become a hereditary elite. The dominant tribe were the Arevaci, who dominated their neighbors from powerful strongholds at Okilis (Medinaceli) and who rallied the long Celtiberian resistance to Rome. Other Celtiberians were the Belli and Titti in the Jalón valley, and the Lusones to the east.


title: Celtiberians

text: Excavations at the Celtiberian strongholds "Kontebakom-Bel" Botorrita, "Sekaisa" Segeda, Tiermes complement the grave goods found in Celtiberian cemeteries, where aristocratic tombs of the 6th to 5th centuries BC give way to warrior tombs with a tendency from the 3rd century BC for weapons to disappear from grave goods, either indicating an increased urgency for their distribution among living fighters or, as Almagro-Gorbea and Lorrio think, the increased urbanization of Celtiberian society. Many late Celtiberian "oppida" are still occupied by modern towns, inhibiting archaeology.


title: Celtiberians

text: Metalwork stands out in Celtiberian archaeological finds, partly from its indestructible nature, emphasizing Celtiberian articles of warlike uses, horse trappings and prestige weapons. The two-edged sword adopted by the Romans was previously in use among the Celtiberians, and Latin "lancea", a thrown spear, was a Hispanic word, according to Varro. Celtiberian culture was increasingly influenced by Rome in the two final centuries BC.


title: Celtiberians

text: From the 3rd century, the clan was superseded as the basic Celtiberian political unit by the "oppidum", a fortified organized city with a defined territory that included the "castros" as subsidiary settlements. These "civitates" as the Roman historians called them, could make and break alliances, as surviving inscribed hospitality pacts attest, and minted coinage. The old clan structures lasted in the formation of the Celtiberian armies, organized along clan-structure lines, with consequent losses of strategic and tactical control.


title: Celtiberians

text: The Celtiberians were the most influential ethnic group in Iberia when the Mediterranean powers (Carthage and Rome) started their conquests. In 220 BC, the Punic army was attacked when preparing to cross the Tagus river by a coalition of Vaccei, Carpetani and Olcades. Despite these clashes, during the Second Punic War the Celtiberians served most often as allies or mercenaries of Carthage in its conflict with Rome, and crossed the Alps in the mixed forces under Hannibal's command. Under Scipio Africanus, the Romans were able to secure alliances and change the allegiances of many Celtiberian tribes, using these allied warriors against the Carthaginian forces and allies in Spain. After the conflict, Rome took possession of the Punic empire in Spain, and some Celtiberians soon challenged the new dominant power that loomed in the borders of its territory. Tiberius Sempronius Gracchus spent the years 182 to 179 pacifying the Celtiberians. Gracchus boasted of destroying over 300 Celtiberian settlements.


title: Celtiberians

text: In 155 BC, a raid into Hispania Ulterior (Farther Spain) by the Lusitani and the defeat of two successive Roman praetors encouraged the town of Segeda in Hispania Citerior (Nearer Spain) to rebel. The following year, it refused to pay tribute or provide a military contingent to Rome but formed instead a confederacy with neighboring towns and began the construction of a defensive wall. Quintus Fulvius Nobilior was sent against the Celtiberians in 153 BC, with nearly 30,000 men. But the consul was late in arriving and ambushed soon after, with 6,000 Romans slain. A siege of Numantia several days later, where the Segedans had taken refuge, was no more successful. Three elephants were brought up against the town walls but became frightened and turned on the Romans, who retreated in confusion. There were other setbacks, and the hapless Nobilior was obliged to withdraw to camp, where more men suffered frostbite and died of the winter cold. Nobilior lost over 10,000 men in his campaign. In 137 BC, the Celtiberians forced the surrender of a 20,000-man Roman consular army led by Gaius Hostilius Mancinus. In 134 BC, the consul Scipio Aemilianus took charge of the demoralized Roman troops in Spain and laid siege to Numantia.


title: Celtiberians

text: Nearby fields were laid waste and what was not used burned. The stronghold of Numantia then was circumvallated with a ditch and palisade, behind which was a wall ten feet high. Towers were placed every hundred feet and mounted with catapults and ballistae. To blockade the nearby river, logs were placed in the water, moored by ropes on the shore. Knives and spear heads were embedded in the wood, which rotated in the strong current. Allied tribes were ordered to send reinforcements. Even Jugurtha, who later would revolt from Rome, himself, was sent from Numidia with twelve war elephants. The Roman forces now numbered 60,000 men and were arrayed around the besieged town in seven camps. The Numantines, "ready though they were to die, no opportunity was given them of fighting".


title: Celtiberians

text: There were several desperate attempts to break out but they were repulsed. Nor could there be any help from neighboring towns. Eventually, as their hunger increased, envoys were sent to Scipio, asking if they would be treated with moderation if they surrendered, pleading that they had fought for their women and children, and the freedom of their country. But Scipio would accept only deditio. Hearing this demand for absolute submission, the Numantines, "who were previously savage in temper because of their absolute freedom and quite unaccustomed to obey the orders of others, and were now wilder than ever and beside themselves by reason of their hardships," slew their own ambassadors.


title: Celtiberians

text: After eight months, the starving population was reduced to cannibalism and, filthy and foul smelling, compelled to surrender. But, "such was the love of liberty and of valour which existed in this small barbarian town," relates Appian, that many chose to kill themselves rather than capitulate. Families poisoned themselves, weapons were burned, and the beleaguered town set ablaze. There had been only about 8,000 fighting men when the war began; half that number survived to garrison Numantia. Only a pitiable few survived to walk in Scipio's triumph. The others were sold as slaves and the town razed to the ground, the territory divided among its neighbors.


title: Celtiberians

text: After Numantia was finally taken and destroyed, Roman cultural influences increased; this is the period of the earliest Botorrita inscribed plaque; later plaques, significantly, are inscribed in Latin. The Sertorian War (80–72 BC) marked the last formal resistance of the Celtiberian cities to Roman domination, which submerged the Celtiberian culture.


title: Celtiberians

text: The Celtiberian presence remains on the map of Spain in hundreds of Celtic place-names. The archaeological recovery of Celtiberian culture commenced with the excavations of Numantia, published between 1914 and 1931.


title: Celtiberians

text: A Roman army auxiliary unit, the Cohors I Celtiberorum, is known from Britain, attested by 2nd century AD discharge diplomas.


title: Celtiberians

text: In a March 2019 genetic study published in "Science", three Celtiberians buried at La Hoya, Alava between 400 BC and 195 BC were examined. They had high levels of north-central European ancestry compared to non-Celtic populations of Iberia. One of the males examined was found to be a carrier of the paternal haplogroup I2a1a1a.


title: Air supremacy

text: Aerial supremacy (also air superiority) is the degree to which a side in a conflict holds control of air power over opposing forces. There are levels of control of the air in aerial warfare. Control of the air is the aerial equivalent of command of the sea.


title: Air supremacy

text: Air power has increasingly become a powerful element of military campaigns; military planners view having an environment of at least air superiority as a necessity. Air supremacy allows increased bombing efforts, tactical air support for ground forces, paratroop assaults, airdrops and simple cargo plane transfers, which can move ground forces and supplies. Air power is a function of the degree of air superiority and numbers or types of aircraft, but it represents a situation that defies black-and-white characterization. The degree of a force's air control is a zero-sum game with its opponent's; increasing control by one corresponds to decreasing control by the other. Air forces unable to contest for air superiority or air parity can strive for "air denial", where they maintain an operations level conceding air superiority to the other side, but preventing it from achieving air supremacy.


title: Air supremacy

text: The achievement of aerial supremacy does not guarantee a low loss rate of friendly aircraft, as hostile forces are often able to adopt unconventional tactics or identify weaknesses respectively. For example, NATO forces which held aerial superiority over Kosovo still lost a stealth strike aircraft to a Serbian ground-based air defense system, despite it being considered "obsolete". Several engagements have occurred in asymmetrical conflicts in which relatively poorly-equipped ground forces have been able to achieve aircraft kills despite working against overwhelming aerial supremacy. During both the Iraq War and the War in Afghanistan, insurgents found a greater degree of success in attacking coalition aircraft on the ground than when they were operating above them in the skies.


title: Air supremacy

text: Although the destruction of enemy aircraft in air-to-air combat is the most obvious aspect of air superiority, it is not the only method of obtaining air superiority. Historically, the most effective method of gaining air superiority is the destruction of enemy aircraft on the ground and the destruction of the means and infrastructure by which an opponent may mount air operations (such as destroying fuel supplies, cratering runways with anti-runway penetration bombs and the sowing of air-fields with area denial weapons). A historical example of this is "Operation Focus" in which the outnumbered Israeli Air Force dealt a crippling blow to the Egyptian, Jordanian and Syrian Air Forces and airfields at the start of the Six-Day War, achieving Israeli air supremacy.


title: Air supremacy

text: Disruption can be carried out through ground and air attack. The main role for which the British Special Air Service was formed with the express purpose of conducting raids on German aircraft and airfields. During operations in the Western Desert the SAS are reckoned to have destroyed more than 400 enemy aircraft. On 6 December 1944, the Imperial Japanese Army Air Force Raiding Group Teishin Shudan destroyed B-29 aircraft on Leyte. During the Cold War, the Soviet Union claimed it could achieve air superiority despite the inferiority of its fighters, by over-running NATO airfields and parking their tanks on the runways, similar to what they have done during Tatsinskaya Raid during the Battle of Stalingrad (note the Germans used parts of their autobahn motorways as airfields during the last war). The Soviet Union planned to use its Spetsnaz special forces in attacks on NATO airfields in the event of conflict.


title: Air supremacy

text: Attacks by special forces have been seen by some commanders as a way to level the playing field when faced by superior numbers or technology. Given the disparity in effectiveness between their own and South Korean and US fighters, North Korea maintains a large force of infiltration troops; in the event of a war, they would be tasked, among other missions, with attacking coalition airfields with mortar, machine gun and sniper fire, possibly after insertion by some 300 An-2 low radar-observable biplanes. This strategy has been practiced in active conflicts even in recent decades; during the asymmetrical warfare of the War in Afghanistan, 15 fedayeen destroyed or severely damaged eight United States Marine Corps Harrier jump jets in the September 2012 Camp Bastion raid, one result of which being pilots fighting as infantry for the first time in 70 years. Similarly, during the Iraqi War, four Apaches were destroyed on the ground in 2007 by insurgents armed with mortar, which were unintentionally aided by web-published geotagged photographs taken by coalition soldiers.


title: Air supremacy

text: The First World War saw many firsts in the field of aerial warfare, including the deployment of aircraft armed with machine guns, the first successful engagement involving synchronisation-gun-armed aircraft on the afternoon of 1 July 1915. Throughout the conflict, air superiority on the Western Front changed hands between the German Empire and the Allies several times. It became recognised that the worst losses was amongst new pilots, many of whom lasted just a day or two. The emergence of specialised fighter units, which were typically led by highly experienced pilots, some of them survivors of the Fokker Scourge period, greatly increased the effectiveness of fighter units.


title: Air supremacy

text: Early on, the Allies gained a lead over the Germans by introducing machine-gun armed types such as the Vickers F.B.5 Gunbus fighter and the Morane-Saulnier L. In response, Germany bolstered its own aerial development efforts; a major achievement of the era was the (push rod controller), a genuine synchronisation gear, developed by the Fokker company. The device was fitted to the most suitable Fokker type, the Fokker M.5K (military designation Fokker A.III), of which A.16/15, assigned to Otto Parschau, became the prototype of the Fokker Eindecker series of fighter designs. This subsequently contributed to a period of German air superiority known as the Fokker Scourge, lasting between late 1915 and early 1916. A briefer period of German aerial dominance occurred in the Bloody April of April 1917; paradoxically, the Germans were disadvantaged on paper during Bloody April in terms of numerical inferiority; their effectiveness was increased by confining themselves to mainly operating over friendly territory, both reducing the possibility of pilots being captured and increasing the amount of time they could stay in the air. Moreover, German pilots could choose when and how they would engage, effectively dictating the terms of combat.


title: Air supremacy

text: The Italian "Corpo Aeronautico Militare" established air superiority over the Austro-Hungarian Imperial and Royal Aviation Troops at the Battle of Vittorio Veneto in late October 1918. The Allies operated roughly 600 aircraft (93 Anglo-French, including four RAF squadrons) to gain complete air superiority in this final offensive. The defeat suffered by Austria-Hungary at Vittorio Veneto has been attributed with causing the dissolution of the empire. In turn, the surrender of Germany's primary ally was another major factor in the German Empire's decision that the conflict was no longer viable and needed to end.


title: Air supremacy

text: In 1921, Italian aerial warfare theorist Giulio Douhet published "The Command of the Air", a book positing that future wars would be decided in the skies. At the time, mainstream military theory did not see air power as a war-winning tactic. Douhet's idea was that air power could be a decisive force and be used to avoid the long and costly War of Attrition. In "The War of 19," Douhet theorized that a future war between Germany and France would be settled in a matter of days, as the winner would be the one to gain air supremacy and destroy a few enemy cities with aerial bombs. He speculated that, while the targets would be announced ahead of time and all the population evacuated, but that the event would terrorize citizens into pressuring their government into immediate surrender. At the beginning of the Second World War, Douhet's ideas were dismissed by some, but it became apparent that his theories on the importance of aircraft were supported by events as the war continued.


title: Air supremacy

text: In 1925, the Royal Air Force (RAF) tested the ability of air supremacy in isolation from other warfare forms during their first independent action in Waziristan. The operation, that later came to be known as Pink's War after Wing Commander Richard Pink in charge, used only air warfare in a combination of air attack and "air blockade" over 54 days to force militant tribes to surrender. The campaign was successful in defeating the tribes with two deaths for the RAF, but contemporary critics were not entirely convinced of its use in isolation; Commander-in-Chief, India General Sir Claud Jacob stated that "satisfactory ... the results of these operations have been, I am of [the] opinion that a combination of land and air action would have brought about the desired result in a shorter space of time, and next time action has to be taken, I trust that it will be possible to employ the two forces in combination".


title: Air supremacy

text: American general Billy Mitchell was another influential air power theorist of the inter-war period. After the First World War I, then-Assistant Chief of Air Service in the United States Army Air Service under Chief Mason Patrick, Mitchell arranged live fire exercises that proved that aircraft could sink battleships (the largest and most heavily armed class of warships). The first of these was "" in 1921, in which the captured First World War-era German battleship, "SMS Ostfriesland", was sunk by a flight of bombers in 22 minutes.


title: Air supremacy

text: Mitchell's ideas were not popular, with his outspoken opposition to Army and Navy resistance resulting in a court-martial that precipitated his resignation, but he would prove prescient; his 1924 inspection tour of Hawaii and Asia culminated in a report (published in 1925 as the book "Winged Defense") that predicted future war with Japan, including the attack on Pearl Harbor. He would also go on to influence air power advocates such as Russian-American Alexander P. de Seversky, whose 1942 "New York Times" bestselling book, "Victory Through Air Power", was made into a 1943 Walt Disney animated film that opened with a quote from Mitchell; the film is reported to have been influentially shown by Winston Churchill to Franklin D. Roosevelt in support of long-range bombing.


title: Air supremacy

text: Seeking to influence the outcome of the Spanish Civil War, various international powers tried to influence the conflict via a heavy reliance on air power. The French government provided aircraft to the Republicans covertly, such as the Potez 540 bomber aircraft (nicknamed the "Flying Coffin" by Spanish Republican pilots), Dewoitine aircraft, and Loire 46 fighter aircraft being sent to the Republican forces, along with a group of trained fighter pilots and engineers to aid the Republicans. Also, until 8 September 1936, aircraft could freely pass from France into Spain if they were bought in other countries. The Soviet Union also covertly aided to Republicans, between 634 and 806 aircraft were supplied alongside various other armaments. Both Italy and Nazi Germany supplied large numbers of aircraft to the Nationalists while also deploying their own units, such as the Condor Legion and the Aviazione Legionaria, to bolster the Nationalist's forces with their own. While the Soviet aircraft were in current service with their own forces, they proved inferior to those supplied by Germany by the end of the conflict. The use of aircraft, particularly by the Nationalists to continually pressure Republican forces and compel multiple withdrawals during the Aragon Offensive, allegedly informed both the Germans and Soviets of the value of using aircraft to support infantry.


title: Air supremacy

text: At the beginning of the Second World War, the opposing sides developed different views on the importance of air power. Nazi Germany viewed it as a helpful tool to support the German Army, the approach being dubbed "flying artillery". The Allies saw it, specifically long-range strategic bombing, as being a more important part of warfare which they believed capable of crippling Germany's industrial centers.


title: Air supremacy

text: After the Battle of France, the Luftwaffe (Germany's air force) achieved "air supremacy" over Western Europe. The Battle of Britain represented a concerted attempt by Germany to establish "air superiority" over Great Britain, which it never achieved. Through home-territory advantage and Germany's failure to push home its strategy of targeting Britain's air defenses, Britain was able to establish air superiority over the territory – a superiority that it never lost. It denied the German military air superiority over the English Channel, making a seaborne invasion (planned as Operation Sea Lion) impossible in the face of Britain's naval power. Strategically, the overall situation at home and abroad at the end of the battle might be considered "air parity" between Britain and Germany. After the air battle, known as the Battle of Britain, the Germans switched to a strategy of night bombing raids, which Britain echoed with raids over Germany.


title: Air supremacy

text: During Operation Barbarossa, the Luftwaffe initially achieved air supremacy over the Soviet Union. As the war dragged on, the United States joined the fight and the combined Allied air forces gained air superiority and eventually "supremacy" in the West. (For example, the Luftwaffe mustered 391 aircraft to oppose over 9,000 allied aircraft on D-day.) Russia did the same on the Eastern Front, meaning the Luftwaffe could not effectively interfere with Allied land operations. Achieving allowed the Allies to carry out ever-greater strategic bombing raids on Germany's industrial and civilian centers (including the Ruhr and Dresden), and to prosecute the land war successfully on both the Eastern and Western fronts. Following the Big Week attacks in late February 1944, the new 8th Air Force commander Jimmy Doolittle permitted P-51 Mustangs to fly far ahead of the bomber formations instead of closely escorting them starting in March 1944. This commenced in March 1944 and was part of a massive "fighter sweep" tactic to clear German skies of Luftwaffe fighters. Allied planes went after the German fighters wherever they could be found and substantially lowered bomber losses for their side for the rest of the war over Western Europe.


title: Air supremacy

text: The element of air superiority has been the driving force behind the development of aircraft carriers, which allow aircraft to operate in the absence of designated air bases. For example, the Japanese attack on Pearl Harbor was carried out by aircraft operating from carriers thousands of miles away from the nearest Japanese air base.


title: Air supremacy

text: Some fighter aircraft specialized in combating other fighters, while interceptors were originally designed to counter bombers. Germany's most important air superiority fighters were the Messerschmitt Bf 109 and Focke-Wulf Fw 190, while the Supermarine Spitfire and Hawker Hurricane were the primary ones on the British side. Performance and range made the P-51 Mustang the outstanding escort fighter which permitted American bombers to operate over Germany during daylight hours. They shot down 5,954 aircraft, more than any other American fighter in Europe. In the Pacific Theater, the A6M Zero gave Japan air superiority for much of the early part of the war, but suffered against newer naval fighters such as the F6F Hellcat and F4U Corsair which exceeded the Zero in performance and durability. The Hellcat shot down 5,168 enemy aircraft (the second highest number), while the land-based Lockheed P-38 was third, shooting down 3,785 in all theaters.


title: Air supremacy

text: During the Cold War, between 1946 and 1991, the US, UK, and NATO allies faced the Soviet Union, the Warsaw Pact, and its allies. Both sides engaged in an arms race of improving radar and fighter intercept capability versus the threat of intercontinental strategic bombers carrying nuclear weapons. Initially, high altitude, later combined with high supersonic speeds, was hoped to keep nuclear bombers out of range of fighters and later surface to air missiles, both of which were sometimes equipped with nuclear warheads. In the 1960 U-2 incident an American very high altitude spy plane was shot down over the USSR with a S-75 Dvina(SA-2) long range high altitude surface to air missile largely refuting the concept of high altitude as a refuge for high-performance bomber aircraft. US training changed to low altitude flight of bombers and unpiloted cruise missiles in the hopes of avoiding ground-based air defense radar networks by hiding in with ground clutter and terrain, thwarting attempts at air supremacy over the enemy landmass. Ballistic missiles were also introduced and were very difficult and expensive to intercept even with nuclear-armed defensive missiles.


title: Air supremacy

text: Airborne early warning and control flying radar aircraft as well as look down shoot down radar in fighter and interceptor aircraft allowed engaging low flying invaders again tipping the balance though this was partly ameliorated by succeeding generations of electronic countermeasures. Ultimately the US led the way in first applying stealth technology to small strike aircraft like the F-117 and stealthy nuclear cruise missiles carried in conventional bombers for standoff release before the air defenses got too thick. The Soviet Union invested heavily in expensive to defeat intermediate and intercontinental range nuclear missiles and less on expensive to maintain patrol bombers, though they had to spend heavily on interceptors and surface to air missiles as well as radar sites to cover the huge landmass of the Soviet Union. The US joined with Canada to organize defense of the area of Alaska, Canada, and the continental United States with North American Aerospace Defense Command or NORAD using both interceptors, some armed with the nuclear AIR-2 Genie, and a surface to air missile component, which was at one point partly nuclearized. Development for the B-2 stealth bomber was intended for, and in anticipation of, a nuclear war and it was the first fully mature stealth aircraft to enter service. The F-22 Advanced Tactical Fighter was a stealth fighter and interceptor aircraft designed during the Cold War as a medium altitude air superiority fighter which was intended to destroy Warsaw Pact aircraft without ever being detected or engaged; both were introduced after the fall of the Soviet Union and the end of the Cold War.


title: Air supremacy

text: Air superiority in the feared Cold War era WW-III European theater would include fighters intercepting or diverting nuclear and conventionally armed strike aircraft and ground-based air defences, some of which were developed into mobile systems which could accompany and protect armored and mechanized formations. While the Cold War never went hot directly between NATO and Warsaw Pact alliances, the US was engaged in two major limited air wars aiding allies who faced Soviet-supported enemies, with both sides using weaponry designed to fight such a conflict; the Korean and Vietnam wars.


title: Air supremacy

text: The Korean War represented a major turning point for aerial warfare, being the first conflict in which jet aircraft played the central role in combat. Once-formidable fighters such as the P-51 Mustang, F4U Corsair, and Hawker Sea Fury—all piston-engined, propeller-driven, and designed during the Second World War—relinquished their air superiority roles to a new generation of faster, jet-powered fighters arriving in the theater. In the initial months of fighting, the P-80 Shooting Star, F9F Panther, Gloster Meteor and other jets under the UN flag dominated the Korean People's Air Force (KPAF) propeller-driven Soviet Yakovlev Yak-9 and Lavochkin La-9s. By early August 1950, the KPAF was reduced to only about 20 planes.


title: Air supremacy

text: However, with the Chinese intervention in late October 1950, the KPAF begun receiving the MiG-15, which was one of the world's most advanced jet fighters at that time. Equipped with not only jet propulsion but also a swept wing, the MiG-15 quickly outclassed the straight-wing United Nations fighters. In response, the United States dispatched three squadrons of its own swept-wing fighter, the F-86 Sabre, which arrived in the theatre in December 1950. The Sabre reportedly claimed kill ratios as high as 10 to 1 against the MiGs, allegedly shooting down 792 MiG-15s and 108 other aircraft in exchange for 78 Sabres that were lost to enemy fire. Meanwhile, the Grumman F9F Panther, a straight-wing carrier-based jet, became the mainstay of the USN during the period and had a relatively good showing, possessing a 7:2 kill ratio against the more powerful MiG-15.


title: Air supremacy

text: During the Vietnam war the US side, especially over the north, had restrictive rules of engagement often requiring visual identification nullifying the advantage they would have had using beyond visual range missiles though possibly avoiding friendly fire due to IFF systems not being ubiquitous on US strike aircraft. In the 1950s, the United States Navy tasked the F-8 Crusader, known affectionately as the "Last Gun Fighter" as their close-in air superiority fighter. This role would be taken over by the F-4 Phantom, which was designed as a missile armed interceptor. The USAF had developed the F-100 and F-104 as air superiority fighters, though by the Vietnam war had already phased out the F-100 from all but air support missions and the fast but slow turning F-104 allegedly deterred attacks and despite losses scored no victories in air combat but in the USAF was also replaced by the F-4 by 1967. Especially under the rules of engagement imposed on them the 'Century Series" aircraft initially specifically designed for intercepting heavy nuclear bombers or delivering tactical nuclear weapons were found to be wanting when they were engaged by the very agile fighters Mikoyan-Gurevich MiG-17 and Shenyang J-6 provided to the VPAF by the USSR and PRC; the Mikoyan-Gurevich MiG-21 while less agile was formidable against the F-4 and traded range for very high performance. This imbalance lead to the USAF ordering variants of the F-4 with an internal 20mm gun, and both the USAF and USN sometimes flying with centerline gun pods on aircraft not equipped with an internal gun.


title: Air supremacy

text: In the 1960s, the limited agility of American fighters in dogfights over Vietnam led to a revival of dedicated air superiority fighters, which led the development of the "Teen Series" F-14, F-15, F-16 and F/A-18. All of them made close-combat manoeuvrability a top priority, and were equipped with guns absent from early Phantoms. The heavy F-14 and F-15 were assigned the primary air superiority mission, because of their longer range radars and capability to carry more missiles of longer range than lightweight fighters.


title: Air supremacy

text: From 1948, when Israel reestablished independence from a protective League of Nations mandatory regime managed by the UK, the neighbouring countries have, to varying degrees, disputed the legitimacy of a Jewish state in a majority Arab region. Some neighbouring states have in the last few decades recognized and signed peace treaties; all have ceased large scale conventional warfare to overrun Israel in large part due to an increasing ability to impose Israeli air supremacy over the region's airspace when required.


title: Air supremacy

text: The Israeli Air Force formed in 1948 with the formation of the modern State of Israel. Israel was involved in the 1948 Arab–Israeli War immediately after the end of the British mandate in Palestine. The air force initially consisted of mainly donated civil aircraft, a variety of obsolete and surplus ex-World War II combat-aircraft were quickly sourced by various means to supplement this fleet. Creativity and resourcefulness were the early foundations of Israeli military success in the air, rather than technology which, at the inception of the IAF, was generally inferior to that used by Israel's adversaries. In light of the complete Arab theater air supremacy, and the bombing and shelling of existing airbases, the first Israeli military-grade fighters operated from a hastily constructed makeshift airbase around the current Herzliya Airport, with fighters dispersed between the trees of an orange orchard. As the war progressed, more and more Czechoslovak, American, and British surplus WWII-era aircraft were procured, leading to a shift in the balance of power.


title: Air supremacy

text: In 1956, Israel, France, and the United Kingdom occupied the Sinai Peninsula after Egypt closed the Straits of Tiran to Israeli ships, sparking the Suez Crisis. Israel's new French-made Dassault Mystere IV jet fighters provided air cover for the paratroop transport aircraft. The Egyptian tactic was to use their new Soviet-made MiG-15 jets as fighter escorts, while their older jets conducted strikes against Israeli troops and vehicles. In air combat, Israeli aircraft shot down between seven and nine Egyptian jets with the loss of one plane, but Egyptian strikes against the ground forces continued through to 1 November. After several sorties were launched by French and British aircraft, President Gamal Abdel Nasser ordered his pilots to withdraw to bases in Southern Egypt. The Israeli Air Force was then free to strike Egyptian ground forces at will.


title: Air supremacy

text: In 1967, the Straits of Tiran were again closed and international peacekeepers were ejected by Egypt. Israel then initiated Operation Focus. Israel sent nearly every capable combat aircraft out against the vastly larger Egyptian Air Force, holding only four for protection. Egyptian airfields were destroyed with anti-runway penetration bombs and the aircraft were mostly destroyed on the ground; Syria and Jordan also had their air forces destroyed when they entered the conflict. This is one of the preeminent examples of a smaller force seizing air supremacy where Israel had complete control of the skies above the entire conflict area.


title: Air supremacy

text: Following the Six-Day War, from 1967 to 1970, there were small scale incursions into the Israeli-held Sinai desert as Egypt rearmed. This evolved into large-scale artillery and air incursions in 1969, with Soviet pilots and SAM crews arriving to assist in January 1970. The strategy was to engage Israeli aircraft in surprise fighter encounters near the Suez Canal where Egyptian SAMs could be used to assist fighters. Syrian, North Korean, and Cuban pilots assisting also suffered losses in this period. In August 1970, a cease-fire was agreed on.


title: Air supremacy

text: The first few days of the 1973 Yom Kippur War saw major Arab ground breakthroughs, surprising Israel who, after its lopsided 1967 victory, considered its air supremacy sufficient to blunt or dissuade any conventional attack. Despite Egypt and Syria having rebuilt their air forces since 1967, Israel continued to deny them the airspace over the battle area; however, these Arab forces were able to control losses and shoot down Israeli air support aircraft by employing mobile surface to air weaponry which travelled along with invading units. Most of Israel's air power in the first few days was directed to reinforce the badly mismatched garrison overlooking the besieged Golan Heights which was under attack by Syria. After weakening the Arab SAM cover with airstrikes, commando raids, and armored cavalry, the Arab armored units outran their mobile SAM cover and Israeli aircraft began to take greater control of Egyptian skies, permitting Israeli landings and establishing a beachhead on the west bank of the Suez canal. When Egyptian fighter aircraft were sent into the area of the Israeli bridgehead, SAM sites were offlined which allowed Israeli air power to more safely engage and destroy many Egyptian fighters though taking some losses.


title: Air supremacy

text: The 1978 South Lebanon conflict was an invasion of Lebanon up to the Litani River, carried out by the Israel Defense Forces in 1978 in response to the Coastal Road massacre. Israel had complete air supremacy.


title: Air supremacy

text: In the 1982 Lebanon War where Israel invaded up to Beirut, Syria intervened on the side of Lebanon and the PLO forces residing there. Israeli jets shot down between 82 and 86 Syrian aircraft in aerial combat, without losses. A single Israeli A-4 Skyhawk and two helicopters were shot down by anti-aircraft fire and SAM missiles. This was the largest aerial combat battle of the jet age with over 150 fighters from both sides engaged. Syrian claims of aerial victories were met with skepticism even from their Soviet allies.


title: Air supremacy

text: The Soviets were so shaken by the staggering losses sustained by their allies that they dispatched the deputy head of their air defense force to Syria to examine how the Israelis had been so dominant.


title: Air supremacy

text: The Israelis have upheld substantial air superiority for most of this time with Israel able to operate almost unopposed; Israel held near air supremacy against targets anywhere within range in the Middle East and North Africa until today. Regarding aircraft procurement, Israel started with British and French designs, then transitioning to indigenous production and then also design before moving again to purchasing to American designs. The Arabs directly participating in these battles against Israel except for Jordan and, to some extent, Iraq have commonly used Soviet designs.


title: Air supremacy

text: In the Falklands War (2 April–20 June 1982), the British deployed Harrier jets as air superiority fighters against Argentina's Mach-capable Dassault Mirage IIIEA fighters and subsonic Douglas A-4 Skyhawk jets. Despite the Sea Harrier's numerical and performance disadvantages, the British Harrier force suffered no air-to-air losses for over twenty Argentine aircraft shot down in aerial combat. Argentine airpower targeted Royal Navy ships during the landings at San Carlos Bay, numerous British vessels were lost or moderately damaged. However, many British ships escaped being sunk due to the Argentine pilots releasing their bombs at very low altitude, and hence those bomb fuzes did not have sufficient time to arm before impact and thus many never exploded. The pilots would have been aware of this—but released at such low altitudes due to the high concentration of British SAMs, Anti-Aircraft Artillery (AAA), and Sea Harriers, many failed to climb to the necessary release point. The Argentine forces solved the problem by fitting improvised retarding devices, allowing the pilots to effectively employ low-level bombing attacks on 8 June.


title: Air supremacy

text: The Iraqi Air Force suffered almost complete obliteration in the opening stages of the Persian Gulf War (2 August 1990 – 28 February 1991). It lost most of its aircraft, as well as command-and-control capability, to precise Coalition strikes or when Iraqi personnel flew their aircraft to Iran. Iraqi Anti-aircraft defenses, including shoulder-launched surface-to-air missiles, were surprisingly ineffective against coalition aircraft, suffering only 75 aircraft losses in over 100,000 sorties, of which 42 of these were the result of Iraqi action while the other 33 were reportedly lost to accidents. In particular, RAF and US Navy aircraft which flew at low altitudes to avoid radar were particularly vulnerable, though this changed when the aircrews were ordered to fly above the AAA.


title: Air supremacy

text: During the 1980s, the United States commenced work on a new fighter capable of gaining air superiority without being detected by an opposing force, approving the Advanced Tactical Fighter program to develop a replacement for the United States Air Force's (USAF) aging F-15 fleet. The YF-23 and the YF-22 were chosen as the finalists in the competition. During 2005, the F-22 Raptor, the subsequent result of the program, became operational. USAF officials have promoted the F-22 as being a critical component of the service's tactical air power. Its combination of stealth, aerodynamic performance, and avionics systems is said to enable unprecedented air combat capabilities.


title: Air supremacy

text: Anthony Cordesman wrote of NATO's theater air supremacy during its 1999 intervention in the Kosovo War of 1998–1999. According to several reports, including reports by the Carnegie Endowment for International Peace and Bulletin of the Atomic Scientists that quote Russian sources, the Russian Federation has in recent decades formulated explicit strategies for using tactical nuclear weapons. These new strategies have in part resulted from the assumption of obtaining air supremacy and use by the U.S. Air Force of precision munitions with little collateral damage in the Kosovo conflict in what amounted to quick mass destruction of military assets once only possible with nuclear weapons or massive bombing against fellow Slavic Serbians; it also assumed that Russia and its allies do not have the strategic economic capacity of current NATO and allied nations to meet this threat with conventional weapons. In response Vladimir Putin, then secretary of the Security Council of Russia, developed a concept of using both tactical and strategic nuclear threats and strikes to de-escalate or cause an enemy to disengage from a conventional conflict threatening what Russia considered a strategic interest. This concept was formalized when Putin took power in Russia in the following year.


title: Air supremacy

text: Throughout the Syrian Civil War of the 2010s, Israel was reportedly able to hold a general stance of air superiority over the Syrian forces, enabling offensive operations with relative impunity. However, this was challenged during 2018 by the deployment of a Russian-supplied S-400 missile battery to the Syrian theatre. During the February 2018 Israel–Syria incident, despite the loss of an aircraft, Israel has demonstrated their capability to operate without effective interference within the Syrian theater. On 22 May 2018, Israeli Air Force chief Amikam Norkin said that the service had employed their F-35Is in two attacks on two battle fronts, marking the first combat operation of an F-35 by any country.


title: Patrick Brammall

text: Patrick Brammall (born 30 March 1976) is an Australian actor and writer. He is best known for his roles as Sean Moody in the ABC comedy "A Moody Christmas"; as Leo Taylor in Series 5 of Channel Ten's "Offspring;" and as Sergeant James Hayes in the ABC series "Glitch".


title: Patrick Brammall

text: Brammall was born in Canberra. He was born with the rare genetic disorder prune belly syndrome and his doctors did not think he would survive. He underwent several operations and spent quite a lot of time in and out of hospital during the first 10 years of his life. He attended St Thomas the Apostle primary school in Kambah and secondary at Marist College Canberra.


title: Patrick Brammall

text: Patrick Brammall graduated from Victorian College of the Arts in 2001. His breakthrough role was in the 2004 television movie "The Alice", which led to a starring role in the spin-off series in 2005. He also had a starring role in television series "Canal Road" in 2008. This was followed by many roles in television series, short films and theatre.