Operation Muscatine

Operation Muscatine
Part of the Vietnam War
Vietnamese detainees during Operation Muscatine
Date 18 December 1967 – 10 June 1968 Location Quảng Ngãi Province, South Vietnam 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.