Bee Yun JO is Associate Research Fellow at the Center for Security and Strategy(defense strategy division), Korea Institute for Defense Analyses (KIDA). Before joining KIDA in 2020, she was Research Professor at Institute of International Affairs(IIA), Seoul National University, and full-time lecturer at East Asia International College(EIC), Yonsei University. Her research focuses on South Korea’s deterrence and defense strategy, particularly on ROK-US extended deterrence, US’s nuclear strategy, and alliance and armament in Northeast Asia. Her recent publications include US's Low-yield Nuclear Weapons and Extended Deterrence on the Korean Peninsula(Seoul: KIDA, 2021), “Plan B for Non-Nuclear States in East Asia: Debating on Nuclear Latency as Means for Potential Deterrence”(National Strategy, Vol. 27, No. 4, 2021), and “The Nukes We Need: Retrofitting American Extended Deterrent”(Journal of Peace and Unification, 2022). Her publications also appear in Asian Perspective, International Relations of the Asia-Pacific, Korean Social Science Journal, Korean Journal of Security Affairs, and others. She is advisory committee member of ROK Ministry of Foreign Affairs, Department of Arms Control and Nonproliferation. She is nonresident senior fellow at the Atlantic Council’s Indo-Pacific Security Initiative. She is also editorial board member of the Korean Political Science Association and member of planning board of Korean Association for Political and Diplomatic History, and advisory committee member of the National Unification Advisory Council. She holds Bachelor of Fine Arts, with honors, from Rhode Island School of Design (RISD). She received M.A.(Valedictorian) and Ph.D. in International Studies from Graduate School of International Studies(GSIS), Seoul National University.