 He taught as an assistant professor at the Bologna Center in the Johns Hopkins School of Advanced International Relations before he became assistant professor in the School of International Relations at the University of Southern California.In addition, he has received fellowships from places like the Institute for Advanced Study; the Princeton Society of Fellows; the U.S. Fund for Peace; the International Research & Exchanges Board; and the Ford Foundation, where he has a "'Dual Expertise Fellowship' in Soviet/East European and national security affairs.