Annexation of Crimea by the Russian Federation
</ref>|units1=Based in Crimea,elements of

Navy
 510th Naval Inf Bde (Feodosiia)
 810th Naval Inf Bde (Simferopol)

Deployed to Crimea, elements of

Ground Forces 
 18th Mot Rifle Bde (Grozny)
 291st Artillery Bde (Troitskaya)

(GRU command)
 3rd Spetsnaz Bde (Tolyatti)
 10th Spetsnaz Bde (Krasnodar)
 16th Spetsnaz Bde (Tambov)
 22nd Spetsnaz Bde (Stepnoy)
 25th Spetsnaz Rgt (Stavropol)
 45th Spetsnaz Rgt(Kubinka, Moscow)

Airborne
 7th Air Assault Div (Novorossiysk)
 31st Indep Air Assault Bde(Ulyanovsk)

Navy
 382nd Naval Inf Bn (Temryuk)
 727th Naval Inf Bn (Astrakhan)

Special Operations Forces
 SOF Command (Prokhladny)|notes=|casualties_label=|fined=|charged=|detentions=|arrests=|injuries=|fatalities=|casualties3=2 civilian deaths during the protests, 1 civilian killed by "Crimean self-defense" under the leadership of a former serviceman of the Armed Forces of the Russian Federation|casualties2=|strength2=Protesters
 4,000–10,000 (Simferopol)

 
 40,000 reservists, partly mobilised (outside Crimea)|partof=the pro-Russian unrest in Ukraine and the Russo-Ukrainian War|strength1=Protesters
 
 10,000 (Simferopol)

Volunteer units
 5,000 (Sevastopol)
 1,700 (Simferopol)

Russian military forces
 20,000–30,000 troops|commander2= Oleksandr Turchynov Arseniy Yatsenyuk Ihor Tenyukh Mykhailo Kutsyn Serhiy Hayduk Arsen Avakov Valentyn Nalyvaichenko Andriy Parubiy Anatolii Mohyliov Serhiy Kunitsyn  Refat Chubarov  Mustafa Dzhemilev|commander1= Vladimir Putin Dmitry Medvedev Sergey Shoygu Valery Gerasimov Aleksandr Vitko Oleg Belaventsev Alexey Dyumin Sergey Aksyonov Vladimir Konstantinov Viktor Pshonka Rustam Temirgaliev Alexey Chaly|combatant2=|combatant1=|result=Russian strategic and territorial victory
 Russian masked troops invade and occupy key Crimean locations, including airports and military bases, following Putin's orders.
 The head of the Ukrainian Navy, Admiral Berezovsky, defects, followed later by half of the Ukrainian military stationed in the region.
 Russian forces seize the Supreme Council (Crimean parliament) on 27 February. The Council of Ministers of Crimea is dissolved and a new pro-Russian Prime Minister installed.
 The Supreme Council declares the Republic of Crimea to be an independent, self-governing entity, then holds a controversial referendum on the status of Crimea on 16 March, which results in a majority vote to join the Russian Federation.
 Treaty signed between the Republic of Crimea and the Russian Federation at the Kremlin on 18 March to formally initiate Crimea's accession to the Russian Federation.
 The Ukrainian Armed Forces are evicted from their bases on 19 March by Crimean protesters and Russian troops. Ukraine subsequently announces the withdrawal of its forces from Crimea.
 The Russian State Duma officially passed the Federal Law Admitting to the Russian Federation the Republic of Crimea on 21 March.
 Russia suspended from G8.
 International sanctions introduced on Russia.|status=|coordinates=|place=Crimean Peninsula|date=|caption=Russian President Vladimir Putin signs the treaty of accession with Crimean leaders in Moscow, 18 March 2014.|image=|units2=Armed forces

Navy
 36th Indep Coastal Def Bde (at Perevalne)
 1st Indep Naval Inf Bn (Feodosiia)
 56th Indep Gds Bn (Sevastopol)
 501st Indep Naval Inf Bn (Kerch)
 406th Indep Artillery Bde (Simferopol)
 37th Indep Comms and Control Rgt (Sevastopol)

Paramilitary

Interior troops
 9th Indep Bde (Simferopol)
 15th Indep Bn (Yevpatoriia)
 18th Indep Spec Mot Militia Bn (Haspra)
 42nd Indep Operational Rgt (Sevastopol)
 47th Bde (Feodosiia)

Border guards
 Special-Purpose Border Guard Bn (Yalta)}}

Na February na March 2014, Russia wakporo ma mesịa wepụta Peninsula Crimea na Ukraine. Ihe omume a mere n'ihi mgbanwe mgbanwe nke nkwanye ùgwù ma bụrụ akụkụ nke esemokwu Russo-Ukrainian sara mbara.

Na 22–23 February 2014, Onye isi ala Russia Vladimir Putin kpọkọtara nzukọ abalị niile na ndị isi ọrụ nchekwa iji kparịta mwepu nke onye isi ala Ukraine a chụpụrụ, Viktor Yanukovych . Na njedebe nke nzukọ ahụ, Putin kwuru na "anyị ga-amalite ịrụ ọrụ na ịlaghachi Crimea na Russia".  Na 23 nke ọnwa Febụwarị, e mere ihe ngosi pro-Russian n'obodo Sevastopol nke Crimea. Na 27 February, ndị agha Russia kpuchie na-enweghị akara ngosi  weghaara Kansụl Kasị Elu (ụlọ omebe iwu) nke Crimea   wee weghara saịtị ndị dị mkpa n'ofe Crimea, nke butere nwụnye gọọmentị pro-Russian Sergey Aksyonov na Crimea., na-eduzi referendum ọnọdụ Crimea na nkwupụta nke nnwere onwe nke Crimea na 16 Maachị 2014.   Rọshịa webatara Crimea n'ụzọ iwu ka ọ bụrụ obodo gọọmentị etiti Russia abụọ — Republic of Crimea na obodo Sevastopol nke etiti Sevastopol na   2014  iji mee ka ọnọdụ ọhụrụ ahụ sie ike na ala.