Columbia University in the City of New York

Harriman Institute

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Date

November 11, 2026 | 12:00 PM - 1:30 PM

Location

Marshall D. Shulman Seminar Room, 1219 International Affairs Building
420 W 118th Street, 12th floor, New York, NY 10027, United States
Non-Legally Binding Agreements in International Security

Reserve Your Seat

 

 

 

Registration REQUIRED by 4pm on November 10, 2026 to attend this event in-person.

Please join the Harriman Institute, the Saltzman Institute of War and Peace Studies, and the Department of Political Science for a lecture by Julia Vassileva. Moderated by Allison Carnegie.

The talk addresses the use of non-legally binding international agreements (NLBIAs) in security competition. Sometimes states conclude treaties; sometimes they conclude “nontreaties” (NLBIAs). Why? This talk argues that legal form is chosen rather than defaulted into, and that it carries strategic value which states recognize and exploit. In security competition, non-binding form is a resource that does things binding form cannot.

Dr. Julia Vassileva is a Postdoctoral Research Fellow at Harvard Kennedy School’s Belfer Center for Science and International Affairs. Her research lies at the intersection of international law and international security, focusing on how states use legal norms and institutions as instruments of strategy and statecraft in security competition. Her current second book project is on the use of non-legally binding agreements in international security. Her first book, The Strategic Life of Norms, is forthcoming with Cambridge University Press. Julia was previously a visiting scholar at Columbia’s Advanced Consortium on Cooperation, Conflict, and Complexity (AC4), a visiting researcher at the National University of Singapore’s Center for International Law, a visiting associate professor at Osaka Metropolitan University’s Graduate Law School in Japan, and a researcher at the UN International Law Commission in Geneva and New York.

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