Yifan Cao, from Haidian District, Beijing, is a master's student in World History (Modern and Contemporary European and American History) at the Department of History, Peking University. His fields of research include the history of European integration and modern German history, with a focus on post-war European collective security and common defence, Cold War arms control and transatlantic security cooperation. He has been selected for the "IFSS Youth Leaders" and attended the 8th International Forum on Security and Strategy as a representative. He has conducted academic exchange and archival work in Europe, and participated in several think tank practices, strategic research and international communication projects.