Yong-Sup HAN is currently a Professor of Korea National Defense University. Former President of Korea Nuclear Policy Society (2012-15), Vice President of KNDU(2010-12), President of Korea Peace Research Association (2007-10), Director General of Research Institute for National Security Affairs (2005-08), Special Assistant to the Korean Minister of Defense (1993), Senior Staff Member to the South-North Joint Nuclear Control Commission (1991-92). He has an MPP from Harvard University (1987). Ph. D. on Security Policy from RAND Graduate School (1991). His English publications include Theories of Defense Policy (2012), Peace and Arms Control on the Korean Peninsula (2005), Sunshine in Korea (2002), Nuclear Disarmament and Nonproliferation in Northeast Asia (1995).