In the Mekong Delta of Vietnam, in 1962, an ARVN soldier attempted to execute a young Viet Cong prisoner by threatening him with a pistol after interrogation, as the prisoner lay on the leaf-covered ground.

　　In Vietnam's Mekong Delta, a South Vietnamese soldier attempted to execute a young Viet Cong prisoner by pistol threat after interrogation in 1962, as the prisoner lay on leaf-covered ground.Other ARVN soldiers watched from behind. American photojournalist Dicky Chapel, who covered wars from World War II until her death in Vietnam on November 4, 1965, photographed the scene. 

　

　The execution in Saigon became one of the defining photographs of the Vietnam War. On February 1, 1968, South Vietnamese Police Chief Nguyen Ngoc Loan shot and killed Viet Cong officer Nguyen Van Le, a suspect, by firing a pistol into his head on a Saigon street during the early days of the Tet Offensive.On a Saigon street, a South Vietnamese police chief pointed a gun at the head of a handcuffed Viet Cong prisoner and suddenly pulled the trigger. Photographed by Eddie Adams of the Associated Press, it won the Pulitzer Prize. He agonized that the photo didn't tell the whole story. 

　It was the second day of the Tet Offensive, which erupted on January 30, 1968.North Vietnamese Army and Viet Cong guerrillas attacked towns and cities across South Vietnam, including the capital Saigon, during the holiday ceasefire. South Vietnamese soldiers were dragging a prisoner out of a building and heading toward the press corps. The soldiers stopped, and Police Chief Lieutenant Colonel Loan approached, pistol drawn. Instead of interrogating him, Loan fired, freezing prisoner Bui Leop.The execution was broadcast across America. While the Tet Offensive was a military failure for the Communists, it fueled American public pessimism and fatigue about the Vietnam War. The North's victory in 1975 brought the Tet Offensive to an end.