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People sing the Russian national anthem as they celebrate in Simferopol's Lenin Square on March 16, 2014 after exit polls showed that about 95.5 percent of voters in Ukraine's Crimea region supported union with Russia. Crimeans voted overwhelmingly to join former political master Russia as tensions soared in the east of the splintered ex-Soviet nation amid the worst East-West crisis since the Cold War. AFP PHOTO / DIMITAR DILKOFF (Photo credit should read DIMITAR DILKOFF/AFP/Getty Images)
People sing the Russian national anthem as they celebrate in Simferopol's Lenin Square on March 16, 2014 after exit polls showed that about 95.5 percent of voters in Ukraine's Crimea region supported union with Russia. Crimeans voted overwhelmingly to join former political master Russia as tensions soared in the east of the splintered ex-Soviet nation amid the worst East-West crisis since the Cold War. AFP PHOTO / DIMITAR DILKOFF (Photo credit should read DIMITAR DILKOFF/AFP/Getty Images)

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    Russia: Crimea vote was legal

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Russia: Crimea vote was legal

Vladimir Putin insists that the Crimean referendum was legal and Moscow will accept it. CNN's Fred Pleitgen reports.

Russia: Crimea vote was legal

Vladimir Putin insists that the Crimean referendum was legal and Moscow will accept it. CNN's Fred Pleitgen reports.