Ph.D., History, University of Delaware

Fellow of the Royal Historical Society

Areas of expertise: medieval warfare, the Crusades, and military history

Professor, military history, Army Command and General Staff College, Fort Leavenworth, Kansas

Selected works:

·  Seven Myths of Military History

·  The Siege of Acre, 1189-1191: Saladin, Richard the Lionheart, and the Battle That Decided the Third Crusade

·  Military Cultures and Martial Enterprises in the Middle Ages

·  Where Heaven and Earth Meet: Essays on Medieval Europe