Dr. Renato Cruz Castro was a visiting fellow in the National Institute for Defense Studies (NIDS) of the Japanese Ministry of Defense in the summer of 2018.   He was a visiting research fellow in the Japan Institute of International Affairs (JIIA) from June to August 2017. From September to December 2016, he was based in the East-West Center in Washington D.C. as the U.S.-ASEAN Fulbright Initiative Researcher from the Philippines. 

He is an alumnus of the Daniel Inouye Asia-Pacific Center for Security Studies in Hawaii, U.S.A. In 2009, Dr. De Castro became the U.S. State Department ASEAN Research Fellow from the Philippines and was based in the Political Science Department of Arizona State University.  He earned his Ph.D. from the Government and International Studies Department of the University of South Carolina as a Fulbright Scholar in 2001, and obtained his B.A. and two master’s degrees from the University of the Philippines.

Dr. De Castro has conducted several courses on International Relations and Security Studies in the National Defense College and Foreign Service Institute.  He has written over 90 articles on international relations and security that have been published in a number of scholarly journals and edited works in the Philippines, Japan, South Korea, Canada, Malaysia, France, Singapore, Taiwan, Germany, the United Kingdom, Australia, and the United States.