Guy Roberts has over thirty years of experience in public policy, foreign affairs, international organizations, bi-lateral and multilateral negotiations on strategic issues, and international legal matters. Until August 2011 he was the Deputy Assistant Secretary General for Weapons of Mass Destruction Policy and Director, Nuclear Policy Planning Directorate for the North Atlantic Treaty Organization (NATO). Prior to that Mr. Roberts was Acting Deputy Assistant Secretary of Defense and Principal Director for Negotiations Policy in the Office of the Secretary of Defense. From 2000 to 2003, Mr. Roberts served as the legal counsel for arms control and non-proliferation in the U.S. Department of the Navy. Mr. Roberts also had a distinguished 25-year career in the US Marine Corps. In September 2011 he joined IB Consultancy as a Principal Consultant.