Task Force Barker

Task Force Barker was a United States Army task force under the command of Lieutenant Colonel Frank A. Barker during the Vietnam War. While a part of Task Force Barker, U.S. Army soldiers from Company C of the 1st Battalion, 20th Infantry Regiment, 11th Brigade of the 23rd (Americal) Infantry Division committed the My Lai Massacre in 1968.

...
Wikipedia