(L-R) U.S. Secretary of Treasury Jack Lew, U.S. Secretary of State John Kerry, China's President Xi Jinping, Vice Premier Wang Yang, Vice Premier Liu Yandong, State Councillor Yang Jiechi attend the opening ceremony of the Sixth Round of U.S.-China Strategic and Economic Dialogue at Diaoyutai State Guesthouse in Beijing July 9, 2014. July 9, 2014. Confrontation between China and the United States would be a disaster and both must respect each others' sovereignty, Xi said on Wednesday as he opened annual talks between the world's two biggest economies. REUTERS/Kim Kyung-Hoon (CHINA - Tags: POLITICS)