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President Obama on Friday warned Russia against a military intervention in Ukraine, saying that "any violation of Ukraine's sovereignty" would be "deeply destabilizing."
Calling the situation in Ukraine "fluid," Obama said he was "deeply concerned" with reports that Russian forces had entered Crimea. But he stopped short of offering specifics on how the U.S. would respond to such an act, saying only that the nation would stand with the international community to ensure Ukrainians determine their own future in next year's elections.
"There will be costs to any military intervention in Ukraine," he warned.