From the former secretary of defense, a strikingly candid, vivid account of serving Presidents George W. Bush and Barack Obama during the wars in Iraq and Afghanistan. When Robert M. Gates received a call from the White House, he thought he’d long left Washington politics behind: After working for six presidents in both the CIA and the National Security Council, he was happily serving as president of Texas A&M University. But when he was asked to help a nation mired in two wars and to aid the troops doing the fighting, he answered what he felt was the call of duty.

Each volume comprises one or more monographs, many of which are issued also as separates.