He joined the department in 1975. His B.A. and Ph.D. are from the University of Minnesota, and he holds a Master of International Affairs from Princeton University. Professor Simon is the author of The Broken Triangle: Peking, Djakarta and the PKI (1969), War and Politics in Cambodia: A Communications Analysis (1974), Asian Neutralism and U.S. Policy (1975), The ASEAN States and Regional Security (1982), The Future of Asian-Pacific Security Collaboration (1988), and editor of East Asian Security in the Post-Cold War Era (1993); Southeast Asian Security in the New Millennium (1996); and The Many Faces of Asian Security (2001). He has also contributed articles to The Journal of Conflict Resolution, Asian Survey, The China Quarterly, Orbis, Pacific Affairs, The Journal of East Asian Affairs, International Perspectives, Problems of Communism, Armed Forces and Society, The Australian Journal of International Affairs, Southeast Asian Affairs, Australian Outlook, NBR Analysis Series, Indochina Issues, Journal of International Affairs, Third World Quarterly, The Korean Journal of Defense Analyses, Asia-Pacific Review, Contemporary Southeast Asia, The Pacific Review, The Journal of Northeast Asian Studies and International Politics. His current research interests focus on assessments of future Asian security arrangements in the post-Cold War era both from the perspectives of regional structure and national foreign policies.