Peter I Belk


Adjunct Professor


Center for Security Studies (CSS)
General profile


+1 202-687-2964


Peter I. Belk currently serves as the Director for Weapons of Mass Destruction Terrorism Threats, Office of Weapons of Mass Destruction Terrorism and Threat Reduction, Nonproliferation Directorate, National Security Council. In this capacity, Mr. Belk plans, directs and coordinates the development of policies relating to state and non-state actor nuclear, chemical, biological and radiological threats, weapons of mass destruction terrorism, and relevant arms control and nonproliferation mechanisms such as the Non-Proliferation Treaty, the Biological Weapons Convention and the Chemical Weapons Convention.

Previously, he served as the Principal Director (Acting) of the Office of the Deputy Assistant Secretary of Defense for Chemical and Biological Defense in the Office of Assistant Secretary of Defense for Nuclear, Chemical and Biological Defense Programs (ASD(NCB)) where he was responsible for supporting the oversight of the Chemical and Biological Defense Program throughout the Department of Defense, and integration with interagency and international partners. Mr. Belk was also the Director, Strategic Relations, International and Interagency in the Chemical and Biological Defense directorate where he focused on the development, management and execution of international and interagency efforts. He also worked in NCB as the Deputy Director, Cooperative Threat Reduction Office, Threat Reduction and Arms Control, as well as a Senior Advisor.

Mr. Belk also served as a Special Assistant in the Office of the Counsel to the President of the United States at the White House, and as a Special Assistant to the Assistant Secretary of State in the Bureau of Intelligence and Research, where he oversaw all-source intelligence support for the Secretary of State, the Deputy Secretary of State and the Under Secretary of State for Political Affairs. Mr. Belk was an analyst in the Office of Strategic, Proliferation and Military Affairs in the Bureau of Intelligence and Research, where he was responsible for political-military matters, conventional and unconventional, in the Middle East and South Asia. In this capacity, Mr. Belk was a key member of the interagency national security team working on Iraqi non-compliance with respect to United Nations resolutions governing Iraqi weapons of mass destruction programs, and was assigned as a biological weapons expert as part of the United Nations Special Commission (UNSCOM) in Iraq.

Since 1993, Mr. Belk has served in the US Army on both active and reserve duty as a civil affairs and military intelligence officer. In addition to his public sector experience, Mr. Belk worked as a corporate and international trade attorney based in Washington, DC and New York, NY, where he focused on business transactions and cross-border legal work in the Russian Federation, Europe and Middle East.


  • Juris Doctor (2002) Columbia University School of Law, Law
  • Masters of Arts (1996) Georgetown University, Security Studies
  • Bachelor of Arts (1993) University of Pennsylvania, Political Science