Dr. Yeliz Yazan Koç is an Assistant Professor in the Department of Political Science and International Relations at the Faculty of Economics, İstanbul University. Her research focuses on international security, East Asian international relations, U.S. alliances, deterrence, and China’s foreign policy. Her doctoral dissertation examined the U.S. system of extended deterrence in East Asia, with particular attention to the U.S.-North Korea-Japan security triangle. During her doctoral research, she was a visiting scholar at Columbia University under the supervision of Professor Robert Jervis. She teaches courses on East Asian international relations and security, and on the politics of the Asia-Pacific, and has published books and articles on these subjects.