Here are some of the most impressive photos captured during the Vietnam War
AP photojournalist Horst Faas took this iconic photo on June 18, 1965, during the Vietnam War with the 173rd Airborne Brigade Battalion on defense duty at Phouc Vinh airstrip in South Vietnam.
Anti-Vietnam war protest, 1969.
US soldier with pictures of his girlfriend attached to his helmet, Vietnam 1968.
In the final stages of the Vietnam War in 1975, President Ford ordered the mass evacuation of Vietnamese orphans from Saigon. Operation Babylift saved more than 3,000 orphans
Private First Class Richie takes a break from the fighting in Vietnam to sniff the perfume of his girlfriend in Jay, Oklahoma as he opens her letter, April 1966. (Photo by John Nance/AP).
Residents of Hanoi wait in chest-deep sidewalk shelters for the all clear signal, during an air raid alert. Hanoi, North Vietnam, 1967.
South Vietnamese General Nguyen Ngoc Loan, chief of the national police, fires his pistol into the head of suspected Viet Cong officer Nguyen Van Lem on a Saigon street, on Feb. 1, 1968. (AP Photo/Eddie Adams)
A Viet Cong guerrilla stands guard in the Mekong Delta, 1972. (Photo by Minh Truong)
American airman Dewey Wayne Waddell, held prisoner in Vietnam, 1967. (Photo by Thomas Billhardt)
The released prisoner of war Lieutenant Colonel Robert L. Stirm is greeted by his family at Travis Air Force Base in Fairfield, California, as he returns home from the Vietnam War, March 17, 1973. (Photo by Slava “Sal” Veder)