Ambassador Robert L. Gallucci is a Distinguished Professor of Diplomacy at Georgetown University. Previously he served chairman of the US-Korea Institute at Johns Hopkins SAIS. Additionally, he was Dean of the Edmund Walsh School of Foreign Service for 13 years until he left in July 2009, to become president of the John D. and Catherine T. MacArthur Foundation. He was appointed dean in 1996, after 21 years of distinguished service in a variety of government positions, focusing on international security. As Ambassador-at-Large and Special Envoy for the US Department of State, he dealt with the threats posed by the proliferation of ballistic missiles and weapons of mass destruction. He was chief US negotiator during the North Korean nuclear crisis of 1994, and served as Assistant Secretary of State for Political Military Affairs and as Deputy Executive Chairman of the UN Special Commission overseeing the disarmament of Iraq following the first Gulf War.