"Moscow-born Dmitry Savransky, right, who holds dual citizenship, American and Russian, joins his Ukrainian wife Natalya Seay, left, during a protest rally in front of the Russian embassy, in Washington, Sunday, March 2, 2014. Igniting a tense standoff, Russian forces surrounded a Ukrainian army base Sunday just as the country began mobilizing in response to the surprise Russian takeover of Crimea. Outrage over Russia's tactics mounted in world capitals, with U.S. Secretary of State John Kerry calling on President Vladimir Putin to pull back from ""an incredible act of aggression."" (AP Photo/Manuel Balce Ceneta)"