The Mỹ Lai Massacre (Vietnamese: thảm sát Mỹ Lai [tʰɐ̃ːm ʂɐ̌ːt mǐˀ lɐːj], [mǐˀlɐːj] ( listen); /ˌmiːˈlaɪ/, /ˌmiːˈleɪ/, or /ˌmaɪˈlaɪ/)[1] was the Vietnam War mass killing of between 347 and 504 unarmed civilians in South Vietnam on March 16, 1968. It was committed by U.S. Army soldiers from the Company C of the 1st Battalion, 20th Infantry Regiment, 11th Brigade of the 23rd (Americal) Infantry Division. Victims included men, women, children, and infants. Some of the women were gang-raped and their bodies mutilated.[2][3] Twenty-six soldiers were charged with criminal offenses, but only Lieutenant William Calley Jr., a platoon leader in C Company, was convicted. Found guilty of killing 22 villagers, he was originally given a life sentence, but served only three and a half years under house arrest.
The massacre, which was later called "the most shocking episode of the Vietnam War",[4] took place in two hamlets of Son My village in Quảng Ngãi Province.[5] These hamlets were marked on the U.S. Army topographic maps as My Lai and My Khe.[6] The U.S. military codeword for the alleged Viet Cong stronghold in that area was Pinkville,[7] and the carnage became known as the Pinkville Massacre first.[8][9] Next, when the U.S. Army started its investigation, the media changed it to the Massacre at Songmy.[10] Currently, the event is referred to as the My Lai Massacre in America and called the Son My Massacre in Vietnam