Want to understand Crimea? It's complicated.
From the Turkish Coalition Of America, May 18, 2015:
71st Anniversary of Sürgün, the Mass Deportation of the Crimean Tatars
On May 18, 1944, the entire Crimean Tatar population in Crimea was rudely awakened by Soviet soldiers, loaded on trucks, taken to the nearest train stations and brutally deported to Central Asia, the Urals and Siberia.
On May 19, 1944, the Internal Affairs Minister, People’s Commissar of USSR L.P. Beria in his message to I.V. Stalin stated: “Reporting on the current situation of the Special Operation of Crimean Tatars’ Deportation. By the end of May 19, 165,515 persons were brought to different train stations. 136,412 persons were loaded on trains and sent to their destination of exile. The operation continues.” On May 20, 1944, L.P. Beria’s deputy in Crimea, Boghdan Khabulov, wired the following note: “We are notifying you that the operation of the Deportation of Crimean Tatars, which started on May 18 as you demanded is concluding today on May 20... 173,287 persons were deported by loading them on sixty-seven trains. Sixty three trains loaded with people are on their way, the remaining four trains will depart today…”
Today, it is estimated that over 180,000 Crimean Tatar were deported to various regions of the former USSR. An estimated 46 percent of the deportees died due to starvation and disease....
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The Soviet excuse was that the Tatar population collaborated with the Nazis, which was sometimes true. It is also true that many Tatars were members of the Soviet military fighting the Nazis.
In the late 1980's and into the 1990's some 260,000 Tatars and descendants returned to Crimea and in the 2014 census the Tatars comprised 12.6% of Crimea's population.