Peter I. Belk is the Director, Strategic Relations, International and Interagency, Chemical and Biological Defense Directorate, Office of the Secretary of Defense for the Assistant Secretary of Defense for Nuclear, Chemical and Biological Defense Programs (ASD(NCB)). In this capacity, Mr. Belk focuses on the development, management and execution of international and interagency efforts for the chemical and biological defense directorate programs and initiatives in the Department of Defense. He is also active in NCB on a number of high priority countering weapons of mass destruction efforts, and worked in NCB as the Deputy Director, Cooperative Threat Reduction Office, Threat Reduction and Arms Control, as well as a Senior Advisor.

Previously, he served as 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 also 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 military intelligence officer, including having been activated for overseas deployment to JAC Molesworth, UK at EUCOM in support of Operation Allied Force and service as the Deputy Chief of Targeting, J2T at the J2 in the Office of the Chairman of the Joint Chiefs of Staff at the Pentagon, and in the United States Army Reserve Consequence Management Unit. He is currently the Executive Officer of the 450th Civil Affairs Battalion (Airborne).

In addition to his government and military experience, Mr. Belk worked in the private sector as a corporate and international trade attorney based in Washington, DC and New York, NY, where he focused on international business transactions and cross-border legal work in the Russian Federation, Europe and Middle East. He was also an Executive Vice President and Chief Legal Officer of a health and life sciences management consulting firm.