WASHINGTON - President Barack Obama ordered the West's first sanctions in response to Russia's military takeover of Crimea on Thursday, declaring his determination not to let the Kremlin carve up Ukraine. He asserted that a hastily scheduled referendum on Crimea seceding and becoming part of Russia would violate international law.
European leaders announced their own measures but split over how forcefully to follow America's lead. Obama threatened further steps if Russia persists.
After announcing his sanctions at midday, Obama emphasized his resolve in a personal telephone call with Russian President Vladimir Putin later Thursday, the White House said. In a one-hour discussion, Obama affirmed his contention that Russia's actions violate Ukraine's sovereignty.
The U.S. president told Putin there was still a way to resolve the dispute diplomatically, the White House said - with Russian forces moving back to their base in Crimea, the governments of Ukraine and Russia holding direct talks and international monitors arriving.
The U.S. is also calling on Russia to recognize the legitimacy of Ukrainian plans for elections in May, not the Crimean referendum a week from Sunday.
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