Russian President Vladimir Putin, Crimea's Prime Minister Sergei Aksyonov, parliamentary speaker Vladimir Konstantinov, and Sevastopol Mayor Alexei Chaliy attend a signing ceremony at the Kremlin on March 18 to make the Black Sea peninsula a part of Russia. (REUTERS/Sergei Ilnitsky/Pool)
Pool photo by Sergei Ilnitsky
Sevastopol residents celebrate after Crimeans voted in a referendum to join Russia and break away from mainland Ukraine. (Petr Kassin/Kommersant Photo via Getty Images)
Petr Kassin/Kommersant Photo, via Getty
The mother and wife of Crimean Tatar Reshat Ametov follow his coffin during his funeral in Simferopol on March 18, 2014. Ametov, who had been protesting against the presence of Russian troops in the region, was found dead days after witnesses saw him being hauled away by men wearing military-style jackets. (DIMITAR DILKOFF/AFP/Getty Images)
Dimitar Dilkoff/AFP/Getty
Members of Crimea's Tatar community pray over the coffin of Reshat Ametov, who was abducted and slain by unknown assailants after protesting against Russia's military presence in the region. (DIMITAR DILKOFF/AFP/Getty Images)
Dimitar Dilkoff/AFP/Getty
A couple kisses as a man plays accordion during celebrations in Sevastopol on March 17, 2014, one day after Crimeans voted to join Russia. (VIKTOR DRACHEV/AFP/Getty Images)
Viktor Drachev/AFP/Getty
Pro-Russian activists chant outside of the Donetsk Prosecutors Building during a protest in the eastern city of Donetsk, where tensions have spread after the Crimean referendum. (Jessica Rinaldi for The Boston Globe via Getty Images)
Jessica Rinaldi for The Boston Globe, via Getty
Crimean Tartars play with their children at their father's home in Belogorsk near the Crimean capital of Simferopol. Among the voices drowned out by victory celebrations across Crimea as it voted to leave Ukraine were those of the Tatars, a minority group ruthlessly suppressed during Soviet times. (REUTERS/Thomas Peter)
Thomas Peter/Reuters
Members of a "Maidan" self-defense battalion take part in a training at a Ukrainian Interior Ministry base near Kiev March 17, 2014. The first 500 volunteers arrived at the base for training to qualify for service in the newly-created National Guard. Ukraine's parliament endorsed a presidential decree on Monday to carry out a partial mobilization involving 40,000 reservists. (REUTERS/Gleb Garanich)
Gleb Garanich/Reuters
A demonstrator takes part in a pro-Russian rally as riot police stand guard in Donetsk March 16, 2014. Ukraine's new leaders announced on Sunday a call for a newly-created National Guard, accusing Russia of stirring up separatism in the country.(REUTERS)
Reuters
Onlookers watch a speech given by Russian President Vladimir Putin in a cafe in Simferopol March 18, 2014. Putin said on Tuesday Crimea was of vital importance to Russia and had always been part of the country in people's hearts and minds. (REUTERS/Thomas Peter)
Thomas Peter/Reuters
Cossack men install a Russian flag and a Crimean flag on the roof of the City Hall building on March 17, 2014 in Bakhchysarai, Ukraine. The Crimean Parliament has declared independence and formally asked Russia to annex the region. (Dan Kitwood/Getty Images)
Dan Kitwood/Getty
