The Vietnam War - The war was between communist North Vietnam and non-communist South Vietnam. The US allied with South Vietnam because of its dislike of communism. Ended with the US withdrawing in the and Vietnam coming into full communist control.
A Marine at Con Thien wears his faith, alongside earthly goods, on his helmet. September/October “To every Marine on that hilltop the Lord always seemed nearby.” War Without Heroes, Photo by David Douglas Duncan