An unidentified armed soldier stands guard outside the Cabinet of Ministers. Between 27th-28th February Pro-Russian gunmen seized government buildings in the Crimean capital. Unidentified armed soldiers occupied Crimea's airports. Russia formally annexed Crimea on 21st March 2014, 5 days after a referendum in which organisers said 97 percent of voters had voted for secession and was seen as illegitimate by the EU and US. Simferopol, Crimea, Ukraine. 2nd March 2014.