Duc Duc massacre
1971 CE.
Shown on the map at 15.751°, 108.110°.
The Đức Dục Massacre was a massacre of South Vietnamese civilians committed by the People’s Army of Vietnam (PAVN) and Viet Cong (VC) during the Vietnam War, in Đức Dục District, (now Duy Phú commune, Duy Xuyên District) Quảng Nam Province, South Vietnam on 29 March 1971.
Text from the Wikipedia article Đức Dục massacre, licensed CC BY-SA 4.0.