Secretary Of State John Kerry Meets Russian Foreign Minister Sergey Lavrov In London [Getty Images]

LONDON, UNITED KINGDOM - MARCH 14: US Secretary of State John Kerry (C) meets with the Russian foreign minister Sergey Lavrov (L) at the US Ambassadors Residence for talks on the current political situation in the Ukraine, on March 14, 2014 in London, England. Mr Kerry will meet with his Russian counterpart Sergei Lavrov to discuss the Ukrainian crisis situation ahead of a disputed referendum in Crimea on Sunday. (Photo by Sean Dempsey - WPA Pool/Getty Images)

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