A tank maneuvers near a former Ukrainian military base in Perevalne, outside Simferopol, Crimea, March 27, 2014. Russia last week completed the annexation of Crimea following a referendum in which an overwhelming number of residents voted to break off from Ukraine and join Russia. The vote, rejected by Ukraine and the West, was hastily called after Russian forces had overtaken the peninsula.(AP Photo/Pavel Golovkin)