About ME

I am a historian of international security and the global order since 1945. I write and regularly comment on issues of European security and the North Atlantic Treaty Organization (NATO), with a healthy dash of Canadian content.

Currently, I am the associate director of the Program in American Grand Strategy and an associate research professor at the Sanford School of Public Policy at Duke University. With the rest of the team at AGS, I bring distinguished policymakers, practitioners, and experts to Duke and create distinctive learning opportunities for students interested in US foreign policy and national security. At Duke, I also teach courses on US foreign relations and contemporary international affairs.

I am the author of Euromissiles: The Nuclear Weapons That Nearly Destroyed NATO, which came out in 2022, and the editor, with Timothy Andrews Sayle, of The Nuclear North: Histories of Canada in the Atomic Age.

At present, I am working on a handful of projects, including a history of NATO from its founding to the present and a book about the long struggle to overcome the Cold War division of Europe from the 1940s through the war in Ukraine.

I am a term member of the Council on Foreign Relations. I am also a senior fellow at the Bill Graham Centre for Contemporary International History at the University of Toronto, an affiliate of the Triangle Institute for Security Studies, and an affiliate of the America in the World Consortium.

Prior to coming to Duke, I held fellowships at Johns Hopkins School of Advanced International Studies and International Security Studies at Yale University.

I received my Ph.D. in History from the University of Toronto with a concentration in modern international relations. I also hold an MA from the London School of Economics and an Hon. BA from Trinity College in the University of Toronto.

Originally Canadian, I now live in Durham, North Carolina.