Mỹ Lai massacre

On 16 March 1968, U.S. Army soldiers of C Company massacred between 347 and 504 civilians, almost all women, children, and elderly men, in Son My village, Quang Ngai province, South Vietnam. Troops rounded up villagers and killed them with automatic weapons, bayonets, and grenades, also burning homes and mutilating some victims; helicopter pilot Hugh Thompson Jr. intervened to stop the killing. The massacre became the most notorious U.S. war crime of the Vietnam War.