Court martial On 17 November 1970, a court-martial in the United States charged 14 officers, including Major General Koster, the Americal Division's commanding officer, with suppressing information related to the incident. Most of the charges were later dropped. Brigade commander Colonel Henderson was the only high ranking commanding officer who stood trial on charges relating to the cover-up of the Mỹ Lai massacre; he was acquitted on 17 December 1971.
Court martial On 17 November 1970, a court-martial in the United States charged 14 officers, including Major General Koster, the Americal Division's commanding officer, with suppressing information related to the incident Most of the charges were later dropped Brigade commander Colonel Henderson was the only high ranking commanding officer who stood trial on charges relating to the cover-up of the Mỹ Lai massacre; he was acquitted on 17 December 1971.