I received my B.A. and PhD from York University in Toronto, Canada and my M.A. from Queen’s University, Kingston, Canada (where I earned the Best Thesis in International Relations Award). Prior to arriving at Macalester in 1997, I was Assistant Director of the Centre for International and Security Studies, York University, Toronto. I have also served as Research Fellow with the Canadian Department of Foreign Affairs and International Trade; a lecturer at the Canadian Armed Forces School of Aerospace Studies (Winnipeg, Canada); a lecturer at the University of Manitoba (where I earned a university-wide award for Teaching Excellence); and a Research Associate with the Centre for Defence and Security Studies. I was also the beneficiary of a Canadian Department of National Defence "Military and Strategic Studies" graduate scholarship.
Since arriving at Macalester College in 1997, I have taught courses such as Foundations of International Politics; Regional Conflict and Security (which has variously focused on Iraq; Iran, Pakistan and Afghanistan; and the Asia-Pacific Region); War and Islam; War and Peace in the Middle East; The Global War on Terror; and US Foreign and Defense Policy, International Security, Strategic Studies, Advanced International Theory, Chinese Foreign Policy, Medieval Political Thought, Conservative Political Thought, and The Politics of the World Wars.
My academic research interests center on political violence, with a specific focus in recent years on war in late Medieval Latin Christendom. I have published articles in a variety of journals, including European Journal of International Relations; International Studies Quarterly; Contemporary Security Policy; and International Journal. My most recent book are Theorizing Medieval Geopolitics: War and World Order in the Age of the Crusades (2012).; and The Idea of Sovereignty at the Turn of the Fourteenth Century. In 2017 I was awarded a National Endowment for the Humanities grant in support of my research on the idea of sovereignty in the Middle Ages
Beyond international relations, strategic studies and medieval geopolitics, I am most interested in Catholic political thought. I have published on a variety of related topics in magazines such as First Things, Touchstone, Commonweal, and Crisis.