Dr. David Crist is a senior historian for the U.S. government and a special advisor to senior officals in the U.S. government. He frequent advises senior government officials on the Middle East. As an officer in the U.S. Marine Corps Reserve, Crist served two tours with special operations forces in Afghanistan and Iraq. His prior publications include Gulf of Conflict: A History of U.S.-Iranian Confrontation at Sea (Washington Institute, 2009). He holds a B.A. from the University of Virginia and a master's and doctorate in Middle Eastern history from Florida State University.