Juan Ramirez always believed he would die in Vietnam. As a teenager growing up in the San Francisco area in the early 1960s, "Nam was there, just over the horizon, like the distant thump of artillery." His father and uncles had served in World War II, another uncle in Korea. Numerous cousins had enlisted. At nineteen, Ramirez decided to embrace the war. In 1968, the year of the Tet offensive, Ramirez joined the U.S. marines. Two bloody tours...