Japan-US alliance, Security in Asia, Politics and diplomacy of Japan and the United States

Military History and Strategy, International Security Policy and Strategy, Japan-U.S. Alliance.

Indo-Pacific security; Australian foreign policy; Japanese foreign policy; Australia-Japan relations

Foreign & Security Policy of the Republic of Korea, International Relations in East Asia

International law, law of the sea, maritime security

European Security, New domains (space, cyberspace and the electromagnetic spectrum), Defense Technology Innovation

Foreign aid and security cooperation

Expertise: Russia’s foreign and security policy and Eurasian geopolitics

International Relations in South Asia

Ideology of International Relations, Theory of the International Order, Japanese Diplomatic History

Maritime Security, Chinese Military Strategy

Theory of international relations, security theory, U.S. diplomacy

Russian military and security policy

Security law (domestic and international), policy and strategy

Europe, NATO

International politics, African security

Trade, World Trade Organization, Foreign Direct Investment, Global Governance, Japan, Northeast Asia, Asia and the Pacific