William (Mark) Bellamy is a senior adviser to the Africa Program at the Center for Strategic and International Studies (CSIS). He was principal deputy assistant secretary of state for Africa (2001–03) and ambassador to Kenya (2003–06). In Kenya he directed U.S. security programs in the Horn of Africa, supervised the U.S. government’s largest foreign HIV/AIDS program, and led multinational efforts to combat corruption and promote good governance. As a political officer in Pretoria and Cape Town, South Africa (1989–1993), he was involved in U.S. diplomatic efforts to promote a peaceful transition to democratic rule in Namibia and South Africa. Bellamy was senior vice president of National Defense University (NDU), then director of the Africa Center for Strategic Studies (ACSS) at NDU from 2006 to 2012. He was Warburg Professor of International Relations at Simmons University in Boston from 2012 to 2019. Bellamy holds degrees from Occidental College (BA) and the Fletcher School of Law and Diplomacy at Tufts University (MA). He pursued postgraduate work at the Institut Universitaire de Hautes Etudes Internationales (IUHEI) in Geneva and the Ecole National d’Administration (ENA - Promotion Solidarité) in Paris.