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NEW YORK, NY - DECEMBER 18 Foreign Minister of Russia Sergey Lavrov and US Secretary of State John Kerry shake hands following a news conference after a United Nations Security Council meeting on Syria at the United Nations in New York on December 18, 2015. 20 nations from around the world gathered to discuss the ongoing conflict. (Photo by Andrew Renneisen/Getty Images)

NEW YORK, NY - DECEMBER 18 Foreign Minister of Russia Sergey Lavrov and US Secretary of State John Kerry shake hands following a news conference after a United Nations Security Council meeting on Syria at the United Nations in New York on December 18, 2015. 20 nations from around the world gathered to discuss the ongoing conflict. (Photo by Andrew Renneisen/Getty Images)