The Crimean crisis is an international crisis principally involving Russia and Ukraine over control of the Crimean Peninsula, which until February 2014 was administered by Ukraine. Currently, the Crimean Peninsula is controlled by the Russian Federation, a status which is not recognized by the United Nations.
Crimea is populated by an ethnic Russian majority and a minority of both ethnic Ukrainians and Crimean Tatars. Prior to the crisis, Crimea comprised Ukraine's Autonomous Republic of Crimea and the administratively separate municipality of Sevastopol. The Russian Federation has organized them as the Crimean Federal District.