SOUTH VIETNAM. August 6, 1963. Vietnamese airborne rangers, their two U.S. advisers, and a team of 12 U.S. Special Forces troops set out to raid a Viet Cong supply base 62 miles northwest of Saigon. As the H-21 helicopters hovered six feet from the ground to avoid spikes and wires and under sniper fire, the troops jumped out to attack.
Photograph: Horst Faas/AP