Shay works from an intriguing premise: that the study of the great Homeric epic of war, The Iliad, can illuminate our understanding of Vietnam, and vice versa. Along the way, he compares the battlefield experiences of men like Agamemnon and Patroclus with those of frontline grunts, analyzes the berserker rage that overcame Achilles and so many American soldiers alike, and considers the ways in which societies ancient and modern have accounted for and dealt with post-traumatic stress disorder---a malady only recently recognized in the medical literature, but well attested in Homer's pages. The novelist Tim O'Brien, who has written so affectingly about his experiences in combat, calls Shay's book "one of the most original and most important scholarly works to have emerged from the Vietnam war." He's right.