A U.S. Marine CH-46 Sea Knight helicopter comes down in flames after being hit by enemy ground fire during Operation Hastings, just south of the Demilitarized Zone between North and South Vietnam on July 15, 1966. The helicopter crashed and exploded on a hill, killing one crewman and 12 Marines. Three crewman escaped with serious burns.

Mobs of Vietnamese people scale the wall of the U.S. Embassy in Saigon, Vietnam, trying to get to the helicopter pickup zone, just before the end of the Vietnam War on April 29, 1975