Professor Ronald K. Chesser has engaged in many international programs focusing on nuclear nonproliferation, scientific diplomacy, technical training of foreign scientists, nuclear characterizations, and dismantlement of nuclear facilities. As a contractor to the US Department of State he led 23 missions to Iraq between 2005 and 2013 to inspect all of Iraq’s former nuclear facilities, rebuild scientific capacity, and redirect scientific programs. His chief mission in Iraq has been to assist the Government of Iraq in the dismantlement of facilities designed to enrich uranium and isolate fissile nuclear materials. Dr. Chesser worked closely with Iraq’s Ministry of Science and Technology, Ministry of Environment, and Ministry of Higher Education and Scientific Research on cooperative programs in Iraq. He has served as a US Delegate to the International Atomic Energy Agency to evaluate Iraq’s nuclear dismantlement planning in 18 technical programs held in Austria, Jordan, Croatia, and Turkey. Dr. Chesser has served as a scientific contractor to the United States Department of State Office of International Nuclear Security, US Department of Energy, Civilian Research and Development Foundation, Sandia National Laboratory, Savannah River Site, European Commission, Great Britain’s Ministry of Industry, and the International Atomic Energy Agency. He also served as an advisor to the US National Academy of Science in Beijing, China, Seoul, South Korea, and Tokyo, Japan on negotiations to dismantle North Korea nuclear installations (2009-2010).