SIMFEROPOL, UKRAINE - MARCH 07: Cossacks stand outside a local government administration building on March 7, 2014 in Simferopol, Ukraine. Russian Cossacks, some heavily armed, have taken up guard duties at road checkpoints, border crossings and other key facilities that were previously guarded by local, pro-Russian militants across Crimea in recent days. The Crimean Parliament voted yesterday to hold a referendum on March 16 to determine whether Crimea shall secede from Ukraine and join Russia. (Photo by Sean Gallup/Getty Images)
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Getty Images News Sean Gallup