About Author

Ivan Sascha Sheehan is on the faculty of the Graduate Programs in Dispute Resolution at the University of Massachusetts Boston. He specializes in the current conflict between global terrorism and counterterrorism and is a frequent speaker on U.S. foreign policy in the Global War on Terror. Dr. Sheehan's research, based on terrorism incident data, examines the impact of preemptive force on terrorist activity and examines the implications for international conflict management. He earned his Ph.D. from George Mason University.

Professor Sheehan continues to serve as a Visiting Professor at the Institute for Conflict Analysis and Resolution where he teaches courses on international terrorism and counterterrorism. He previously taught in the International Studies Department at Bentley College.