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"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)
" The Rise of China and Japan’s Foreign Policy Reorientation", Li Mingjiang and Kalyan M. Kemburi eds., China's Power and Asian Security (London: Routledge, 2014)
“Japan-Southeast Asia Relations: Implication of US Rebalance to the Asia-Pacific Region”, in Yuki Tatsumi ed.,Japan’s Foreign Policy Challenges in East Asia: Views from the Next Generation (共著、The Stimson Center, March 2014)
"An Emerging East Asian Community?: The Political Process of Regionalism in East Asia", Ralph A. Cossa and Akihiko Tanaka eds., An East Asian Community and the United States (The CSIS Press, 2007)
"From 'Double-Track' to 'Convergence': Japanese Defense Policy and Emerging Security Architecture in Asia-Pacific Region", Yuki Tatumi and Andrew L. Oros eds, Japan's New Defense Establishment: Institutions, Capabilities, and Implications (Washington DC: Henry A. Stimson Center, 2007)
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"Emerging Feature of Multilateral Security in Asia Pacific" Global Economic Review (Vol.32, No.3, 2003).
"ARF and Asia-Pacific Multilateral Security" EurAsia Bulletin, Vol 7. No.2, February 2003.
"Japanese Perspectives on Missile Defense and Strategic Coordination" Non Proliferation Review, Summer 2002.