 On April 1, 1971, President Richard Nixon ordered Calley removed from prison and placed under house arrest at Fort Benning.On August 20, 1971, Lt. Gen. Albert O. Connor, Commanding General of Third Army, in his capacity as convenor of the court-martial, reduced Calley's sentence to 20 years in prison.As required by law, his conviction and sentence were reviewed and sustained by the United States Army Court of Military Review, and the United States Court of Military Appeals.