Peter Mansoor, colonel, US Army (retired), is the General Raymond E. Mason, Jr. Chair of Military History at Ohio State University. A distinguished graduate of West Point, he earned his doctorate from Ohio State University. He assumed his current position after a twenty-six-year career in the US Army that included two combat tours, culminating in his service as executive officer to General David Petraeus in Iraq. He is the author of The GI Offensive in Europe: The Triumph of American Infantry Divisions, 1941–1945 and Baghdad at Sunrise: A Brigade Commander’s War in Iraq. His latest book, Surge: My Journey with General David Petraeus and the Remaking of the Iraq War, a history of the surge in Iraq in 2007– 8, was published by Yale University Press in 2013.