Dr. Satoru Nagao is a fellow (non-resident) at Hudson Institute, based in Tokyo, Japan. From December 2017 through November 2020, he was a visiting fellow at Hudson Institute, based in Washington, DC.

Dr. Nagao's primary research area is US-Japan-India security cooperation. He was awarded his PhD by Gakushuin University in 2011 for his thesis, "India's Military Strategy," the first such research thesis on this topic in Japan. Gakushuin University is a premier institution from which members of the Japanese Imperial Family have also graduated.

Dr. Nagao holds numerous other research positions, including director at the International Security Industry Council, senior research fellow at the Japan Forum for Strategic Studies, specially-appointed research fellow at the Japan Forum on International Relations, research fellow at the Institute for Future Engineering (strategy, defense policy), lecturer at Gakushuin University, associate at the Society of Security and Diplomatic Policy Studies, research fellow at the Security and Strategy Research Institute for Japan, senior fellow at the Institute of National Security Studies Sri Lanka, senior research fellow of the Indian Military Review, and visiting fellow (Indo-Pacific) and honorary convenor at the Japan of Tillotoma Foundation in India.

Dr. Nagao was a visiting scholar at the Center for Strategic and International Studies (CSIS), in Washington DC. He worked previously as a research fellow at the Tokyo Foundation and the Ocean Policy Research Foundation in Tokyo, as a post-doctoral fellow at the Research Institute for Oriental Cultures at Gakushuin University, and as a lecturer at Gakushuin University, Aoyama-Gakuin University and Komazawa University. He was also a security analyst at the Ministry of Foreign Affairs (MOFA) and a first lieutenant of the Japan Ground Self Defense Forces (Japanese Army).

Dr. Nagao has authored numerous books and articles on security issues, and he also contributes to the column, "Age of Japan-India 'Alliance'" at Nikkei Business, the journal of one of Japan’s leading newspapers.