Annexation of Crimea by the Russian Federation military intervention in Ukraine "until normalization of a socio-political environment in the country". Putin's swift manoeuvre prompted protests of intelligentsia and demonstrations in Moscow against a Russian military campaign in Crimea. By 2 March, Russian troops moving from the country's naval base in Sevastopol and reinforced by troops, armour, and helicopters from mainland Russia exercised complete control over the Crimean Peninsula. Russian troops operated in Crimea without insignia. On 4 March Ukrainian General Staff claimed there are units of 18th Motor Rifle Brigade, 31st Air Assault Brigade and 22nd Spetsnaz Brigade deployed and operating in Crimea instead of Russian Black
Annexation of Crimea by the Russian Federation revolution that ousted Ukrainian president Viktor Yanukovych sparked a political crisis in Crimea, which initially manifested as demonstrations against the new interim Ukrainian government, but rapidly escalated. In January 2014 the Sevastopol city council had already called for formation of "people's militia" units to "ensure firm defence" of the city from "extremism". Crimean parliament members called for an extraordinary meeting on 21 February. Crimean Tatar Mejlis chairman Mustafa Dzhemilev said that he suspected that the meeting was arranged to call for Russian military intervention in Crimea. In response to this, the Security Service of Ukraine (SBU) said that it would