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Russia's President Vladimir Putin gestures after signing a treaty on the Ukrainian Black Sea Crimea peninsula becoming part of Russia in the Kremlin in Moscow on March 18, 2014, with Crimean parliament speaker Vladimir Konstantinov and Alexei Chaly, Sevastopol's new de facto mayor. AFP PHOTO/KIRILL KUDRYAVTSEV (Photo credit should read KIRILL KUDRYAVTSE
Russia's President Vladimir Putin gestures after signing a treaty on the Ukrainian Black Sea Crimea peninsula becoming part of Russia in the Kremlin in Moscow on March 18, 2014, with Crimean parliament speaker Vladimir Konstantinov and Alexei Chaly, Sevastopol's new de facto mayor. AFP PHOTO/KIRILL KUDRYAVTSEV (Photo credit should read KIRILL KUDRYAVTSE

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