Ken Jimbo

Ken Jimbo

Managing Director (Representative Director)
President, Asia Pacific Initiative

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JIMBO Ken is Professor at the Faculty of Policy Management, Keio University. He served as a Special Advisor to the Minister of Defense, Japan Ministry of Defense (2020) and a Senior Advisor, The National Security Secretariat (2018-20).

His main research fields are in International Security, Japan-US Security Relations, Japanese Foreign and Defense Policy, Multilateral Security in Asia-Pacific, and Regionalism in East Asia. He has been a policy advisor for various Japanese governmental commissions and research groups including for the National Security Secretariat, the Ministry of Defense and the Ministry of Foreign Affairs. His policy writings have appeared in NBR, The RAND Corporation, Stimson Center, Pacific Forum CSIS, Japan Times, Nikkei, Yomiuri, Asahi and Sankei Shimbun.

[Concurrent Position]
Professor, Faculty of Policy Management, Keio University


International Security / Japan-US Security Relations / Japanese Foreign and Defense Policy / Multilateral Security in Asia-Pacific / Regionalism in East Asia


“Gradational Change of Balance of Power in the Indo-Pacific Addressing Alliance Coordination in the Gray-Zone, Conventional and Nuclear Domains” National Committee on American Foreign Policy(NCAFP) Edited Volume, 2021.
“Sino-Russian Military Cooperation and Japanese Defense Policy”, Ken Jimbo et al., Japan and the Sino-Russian Entente: The Future of Major-Power Relations in Northeast Asia (Seattle: National Bureau of Asian Research, 2017)
“Anchoring Diversified Security Cooperation in the ADMM-Plus: A Japanese Perspective” Asia Policy, No.22 (July 2016)
“Japan-US-Australia Cooperation on Capacity Building in Southeast Asia”, Yuki Tatsumi ed., US-Japan-Australia Security Relations: Prospects and Challenges (Stimson Center, 2015)
“US Rebalancing to the Asia-Pacific: A Japanese Perspective,” in William Tow and Douglas Stuart eds., The New US Strategy towards Asia: Adapting to the American Pivot (London: Routledge, 2015)
Ken JIMBO ed., Regional Security Architecture in the Asia-Pacific, Tokyo Foundation (2010) (in Japanese: Ajia Taiheiyo no Chiiki Anzen Hosho Ahkitekucha)

International House of Japan

Asia Pacific Initiative