U.S. Ambassador to the United Nations Nikki Haley (L, standing) and British Ambassador to the UN Karen Pierce (R, standing) leave as Syrian Ambassador to the UN Bashar Ja'afari addresses the UN Security Council meeting on the situation in Syria, at the UN headquarters in New York, April 9, 2018. The Security Council held an emergency session on the situation in Syria, particularly after reports of the use of chemical weapons over the weekend in rebel-held Douma near the capital city of Damascus. (Xinhua/Li Muzi)