Timothy Sayle

Director, International Relations Program (on leave), Trinity College, University of Toronto
Affiliated Faculty, Centre for European, Russian, and Eurasian Studies
Headshot of Timothy Sayle

Current affiliations

  • Fellow, Trinity College

Areas of interest

  • Britain and Ireland
  • Canada
  • Conflict, violence and genocide
  • Europe
  • International relations
  • State, politics and law
  • United States
  • Modern global security
  • Post-1945 history of international relations and grand strategy
  • Nuclear history
  • Intelligence history.



Timothy Andrews Sayle is Assistant Professor of History and Director of the International Relations Program at Trinity College. He is the author of Enduring Alliance: A History of NATO and the Postwar Global Order (Cornell, 2019). He has co-edited two volumes: with Jeffrey A. Engel, Hal Brands, and William Inboden The Last Card: Inside George W. Bush’s Decision to Surge in Iraq (Cornell, 2019); and with Susan Colbourn, The Nuclear North: Histories of Canada in the Atomic Age (University of British Columbia Press, 2020). His research on NATO, Canadian-American relations, and intelligence issues has been published in Canadian Military History, Cold War History, Intelligence & National Security, International Journal, International History Review, Historical Journal, International Politics, The Journal of Strategic Studies, and in several edited books.

Professor Sayle is a Senior Fellow of the Bill Graham Centre for Contemporary International History, an affiliate of the Centre for the Study of the United States, and an associate of the Center for Presidential History at Southern Methodist University. He is a Fellow of Trinity College and alumnus of Massey College.

Graduate and undergraduate students at the University of Toronto have worked with Professor Sayle to build Canada Declassified, a web repository of recently declassified archival records. This project has been supported by a SSHRC Insight Development Grant and a Connaught New Research Award. Professor Sayle is a project leader of the Canadian Foreign Intelligence History Project.

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