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President of the Academic Council on the United Nations System, and Professor of Government and Foreign Service, Georgetown University

I have studied wars and peace since working at the United Nations in the early 1990s. As a tenured professor, my research and teaching interests span the fields of international relations, comparative politics, and conflict resolution. I’ve published articles about civil war termination, peacekeeping, and American foreign policy, in the top journals in my field.

My work has been winning awards. A recent article with Alexandra Stark, entitled “How Civil Wars End” (International Security, 2018, 42:3), won the 2020 Best Article Award from the International Security Studies Section (ISSS) of the International Studies Association. My first book, UN Peacekeeping in Civil Wars (Cambridge University Press 2008) won the 2010 Book Award from the Academic Council on the UN System. My recent book, Power in Peacekeeping, (Cambridge University Press 2019) won the 2021 best Security Studies Book Award from the International Studies Association.

I earned my M.A. and Ph.D. in Political Science from the University of California, Berkeley, and A.B. in Soviet Studies from Barnard College, Columbia University. I studied in the USSR/Russia--Russian language and Soviet culture in the Spring of 1990 at Leningrad State University, and then Soviet Constitutional Law from 1991-1992, during the political, economic, and constitutional collapse.

I’ve held fellowships at Stanford (CISAC), Harvard (Belfer Center), the University of Maryland (CIDCM), and the U.S. Institute of Peace. I previously served as founding director of the Master of Arts Program in Conflict Resolution at Georgetown; Assistant Professor of Government at Wesleyan University; and Acting Director of UN Affairs for the New York City Commission for the United Nations. I currently serve as President of the Academic Council on the United Nations System.

In 2022, I joined the U.S. Institute of Peace as a Senior Fellow to work the the Russia-Ukraine team.


  • –present
    President, Academic Council on the United Nations System
  • –present
    Professor of Government and Foreign Service, Georgetown University


  • 2001 
    UC Berkeley, Ph.D. & M.A.
  • 1991 
    Barnard College, Columbia University , A.B.


  • 2020
    Assessing the Effectiveness of the UN Mission in the Central African Republic/MINUSCA, Effectiveness of Peace Operations Network
  • 2020
    The Extraordinary Relationship between Peacekeeping and Peace, British Journal of Political Science
  • 2019
    Peacekeeping is not Counterinsurgency, International Peacekeeping
  • 2019
    Power in Peacekeeping, Cambridge University Press
  • 2018
    Why Civil Wars Are Lasting Longer, Foreign Affairs
  • 2018
    The Use of Force in UN Peacekeeping, International Organization
  • 2017
    How Civil Wars End: The International System, Norms, and the Role of External Actors, International Security
  • 2016
    U.S. Foreign Policy Habits in Ethnic Conflict, International Studies Quarterly
  • 2014
    Kosovo and Timor Leste: Neotrusteeship, Neighbors, and the United Nations, Annals of the American Academy of Political and Social Science
  • 2008
    UN Peacekeeping in Civil Wars, Cambridge University Press

Grants and Contracts

  • 2022
    Research Grant
    Funding Source:
    Folke Bernadotte Academy
  • 2012
    Senior Fellowship
    Jennings Randolph Senior Fellow
    Funding Source:
    United States Institute of Peace
  • 2000
    Research Fellowship
    Pre-Doctoral Research Fellow
    Funding Source:
    Belfer Center, Harvard University
  • 1998
    David Hamburg Fellow
    Pre-Doctoral Research Fellow
    Funding Source:
    CISAC, Stanford University
  • 1997
    Graduate International Fellowship
    David L. Boren Scholarship
    Funding Source:
    National Security Education Program

Professional Memberships

  • Board Member, Institute for the Study of Diplomacy, Georgetown University
  • Governing Council Member, International Security Studies Section, International Studies Association
  • Executive Board Member, International Security, American Political Science Association
  • Editorial Board Member, International Peacekeeping
  • Member, Folke Bernadotte Academy Research Working Groups
  • Member, Partnership for Effective Peacekeeping
  • Member, Effectiveness of Peace Operations Network