Operation Muscatine

Operation Muscatine
Part of the Vietnam War

Vietnamese detainees during Operation Muscatine
Date18 December 1967 – 10 June 1968
Location
Result US claims operational success
Belligerents
 United States Viet Cong
Units involved
3rd Brigade, 4th Infantry Division
196th Infantry Brigade
198th Infantry Brigade
11th Infantry Brigade
406th Sapper Battalion
83rd Local Force Battalion
48th Local Force Battalion
Casualties and losses
25 killed US body count: 645+ killed
7 captured
347-504 civilians killed in the My Lai Massacre

Operation Muscatine was a security operation conducted during the Vietnam War by the US Army in Quảng Ngãi Province, South Vietnam from 18 December 1967 to 10 June 1968. During this operation on 16 March 1968 the 1st Battalion, 20th Infantry Regiment and the 4th Battalion, 3rd Infantry Regiment carried out the My Lai Massacre.