At the invitation of the Chinese People’s Institute of Foreign Affairs (CPIFA), former U.S. National Security Advisor Stephen Hadley, Deputy Secretaries of State Richard Armitage, James Steinberg and Assistant Secretary of Defense Joseph Nye visited China from October 22^nd to 23^rd. During their stay in China, Vice Premier Li Keqiang and State Councilor Dai Bingguo met with them respectively. The delegation also held discussions with Chinese experts and scholars on China-U.S. relations and other issues of mutual interest.