On June 1, at the invitation of PKU Institute of State Governance Studies and the Zhao Baoxu Fundation, Professor Zhao Quansheng from American University gives a speech on "The Role Switch of Friend or Foe in International Relations – an example of Trilateral Relations among China, the United States, and Japan" in Liao Kaiyuan Building. Zhao Quansheng is currently Professor of international relations and Chair of Asian Studies Program Research Council at American University. As a specialist in international relations and comparative politics, he is also a guest visiting professor at Peking University, Tsinghua University, Fudan University, University of International Business and Economics, Foreign Affairs University, Korea University, Ritsumeikan University.

　　The lecture was chaired by Prof. Xu Xianglin, deputy dean of the Institute of State Governance Studies, who introduced Professor Zhao Quansheng’s research background and expressed warm welcome.