Xie Xiaoyan (R), Chinese government's Special Envoy on Syria, meets with UN Special Envoy for Syria Staffan de Mistura in Geneva, Switzerland, on Feb. 22, 2017. Xie Xiaoyan on Wednesday welcomed the upcoming peace talks on Syria in Geneva and stressed the role of the United Nations in the mediation to end the lasting conflict in the war-torn country. (Xinhua/Xu Jinquan)