Education: Keio University Faculty of Law, Georgetown University's graduate school and Georgetown University's graduate school, PhD in War Studies, King's College London

Areas of Expertise: International security, European politics, NATO; European integration, European politics, international security, NATO, the EU, nuclear policy, extended deterrence, and defence diplomacy. 

Career: Specialist researcher at the Japanese Embassy in Belgium at the Ministry of Foreign Affairs (in charge of NATO, researcher at the GMF (German et al.), Instructor at the National Institute for Defense Studies at the Ministry of Defense from 2009 to 2017, multilateral security in the Asia-Pacific International Policy Division of the Defense Policy Bureau at the Ministry of Defense (Defense Department), in charge of, particularly ADMM Plus (Expanded ASEAN Defense Ministers Meeting, visiting researcher at RUSI (Royal Institute for Defense and Security Studies). Concurrently serves as a senior researcher at the Tokyo Foundation for Policy Research.