​I am an Associate Professor in the Graduate School of International Studies at Korea University, and a Senior Fellow at The Lauder Institute of Management and International Studies at the University of Pennsylvania. My research interests are in international security, nuclear security, and security in East Asia, with a regional focus on the Korean peninsula and China. My research is published in Security Studies, Journal of Conflict Resolution, British Journal of Politics and International Relations, International Relations of the Asia-Pacific, and The Washington Quarterly.

Previously, I was an Associate Professor (with tenure) in the Department of Political Science at The College of New Jersey. I have also held fellowships at Harvard University's Belfer Center for Science and International Affairs, Stanford University's Center for International Security and Cooperation, and George Washington University's Institute for Security and Conflict Studies. I received a Ph.D. in Political Science from the University of Pennsylvania.