 Complete the following phrase:  The annexation of Crimea by the Russian Federation took place in the aftermath of the 2014 Ukrainian revolution. On 2223 February, Russian President Vladimir Putin convened an all-night meeting with security services chiefs to discuss pullout of deposed President, Viktor Yanukovych, and at the end of that meeting Putin remarked that we must start working on returning Crimea to Russia.. Russia sent in soldiers on February 27, 2014. Crimea held a 