A Tract of Time
 A Tract of Time is an antiwar novel from 1966 by Smith Hempstone that covers the time period about 1960 when there was an attempted coup of South Vietnamese President Ngo Dinh Diem. Even as the United States backed Diem's government during the war its American advisers worked with the Montagnard people who opposed Diem to help them fight the Viet Cong whom they also opposed.