Thomas M. Nichols is professor of strategy and policy at the United States Naval War College. A former chairman of the strategy and policy department, he also holds the Forrest Sherman Chair of Public Diplomacy. He has taught international relations, Soviet and Russian affairs, and government at Georgetown University and Dartmouth College, and is currently adjunct faculty at Harvard University. He has served as an aide in the U.S. Senate, where he was advisor on foreign and defense affairs to Senator John Heinz of Pennsylvania during the first Gulf War. In Washington, he was a fellow at the Center for Strategic and International Studies. He is currently a senior associate of the Carnegie Council on Ethics and International Affairs in New York. His most recent book, about the revolutionary changes taking place in how nations go to war, is titled Eve of Destruction: The Coming Age of Preventive War, and will be published in 2008 by the University of Pennsylvania Press.