Which was an air force officer and an ESA astronaut, Claude Nicollier or Roberto Vittori?
Claude Nicollier Claude Nicollier (born 2 September 1944 in Vevey, Switzerland) is the first astronaut from Switzerland. He has flown on four Space Shuttle missions. His first spaceflight (STS-46) was in 1992, and his final spaceflight (STS-103) was in 1999. He took part in two servicing missions to the Hubble Space Telescope (called STS-61 and STS-103). During his final spaceflight he participated in a spacewalk, becoming the first European Space Agency astronaut to do so during a Space Shuttle mission (previous ESA astronauts conducted spacewalks aboard "Mir", see List of spacewalks and moonwalks 1965–1999). In 2000 he was assigned to the Astronaut Office Extravehicular Activity Branch, while maintaining a position as Lead ESA Astronaut in Houston. Nicollier retired from ESA in April 2007.
Giovanni Ancillotto "Lieutenant" Giovanni 'Giannino' Ancillotto (15 November 1896 – 18 October 1924) was an Italian World War I flying ace credited with 11 confirmed aerial victories. Rather unusually, he served solely with aviation while he was in the military, beginning in the lowest rank. Among his aerial victories as a fighter pilot were three over enemy observation balloons right after the Battle of Caporetto. As an example of the hazards of balloon busting, on 5 December 1917 Ancillotto returned to base with singed swatches of the third balloon's fabric adhering to his damaged fighter plane.