Annexation of Crimea by the Russian Federation fail, and greatly damaging the maize and soybean crops. Annexation of Crimea by the Russian Federation The Crimean peninsula was annexed from Ukraine by the Russian Federation in February–March 2014 and since then has been administered as two Russian federal subjects—the Republic of Crimea and the federal city of Sevastopol. The annexation was accompanied by a military intervention by Russia in Crimea that took place in the aftermath of the 2014 Ukrainian revolution and was part of wider unrest across southern and eastern Ukraine. On 22–23 February 2014, Russian President Vladimir Putin convened an all-night meeting with security service chiefs
Annexation of Crimea by the Russian Federation the 31st Separate Airborne Assault Brigade dressed in Berkut uniforms), established security checkpoints on the Isthmus of Perekop and the Chonhar Peninsula, which separate Crimea from the Ukrainian mainland. Within hours, Ukraine had effectively been cut off from Crimea. On 1 March 2014, Aksyonov declared Crimea's new "de facto" authorities would exercise control of all Ukrainian military installations on the peninsula. He also asked Russian President Vladimir Putin, who had been Yanukovych's primary international backer and guarantor, for "assistance in ensuring peace and public order" in Crimea. Putin promptly received authorisation from the Federation Council of Russia for a Russian