Eliot Cohen is the Robert E. Osgood Professor of Strategic Studies at the Paul H. Nitze School of Advanced International Studies (SAIS) at Johns Hopkins University, where he is founding director of the Philip Merrill Center for Strategic Studies. A graduate of Harvard College, he received a Ph.D. in political science from Harvard University in 1982. After teaching at Harvard and in the Department of Strategy at the Naval War College, Professor Cohen served on the Policy Planning Staff of the Office of the Secretary of Defense before joining SAIS in 1990. From 1991 to 1993 he directed the official U.S. Air Force multi-volume study of the 1991 Gulf War, The Gulf War Air Power Survey. From 2007 to 2009 Professor Cohen was Counselor to Secretary of State Condoleeza Rice, serving as her senior adviser on strategic issues. His most recent book is Supreme Command: Soldiers, Statesmen, and Leadership in Wartime (Free Press, 2002).