China's Permanent Representative to the United Nations Liu Jieyi (C), who is also president of the Security Council for the month, votes in favor of a Security Council resolution regarding the Ukrainian crisis, at the UN headquarters in New York, on Feb. 17, 2015. The UN Security Council on Tuesday unanimously adopted a resolution endorsing measures for the implementation of the new truce on Ukraine crisis. (Xinhua/Niu Xiaolei)