At least 347 and up to 504 civilians, almost all women, children and elderly men, were murdered by U.S. Army soldiers. Some of the women were gang-raped and their bodies mutilated, and some soldiers mutilated and raped children as young as 12.

only Lieutenant William Calley Jr., the leader of 1st Platoon in C Company, was convicted. He was found guilty of murdering 22 villagers and originally given a life sentence, but served three-and-a-half years under house arrest after his sentence was commuted.

Research has highlighted that the My Lai Massacre was not an isolated war crime. Nick Turse places it within a larger pattern of American atrocities enabled by deliberate policies from commanders, such as “free-fire zones” and “body counts”, as well as widespread racism amongst American military personnel. Many other atrocities were also covered up by commanders.