Who was the commanding  Lieutenant General of ARCENT?
XX Corps (United States) The XX Corps of the United States Army fought from northern France to Austria in World War II. Constituted on 10 October 1943 by re-designating the IV Armored Corps of the Army Ground Forces, a training organization which had been activated at Camp Young, California on 5 September 1942, XX Corps became operational in France as part of Lieutenant General George S. Patton's U.S. Third Army on 1 August 1944.
Jean-Baptiste Piron Lieutenant General Jean-Baptiste Piron (18961974) was a Belgian military officer, best known for his role in the Free Belgian forces during World War II as commander of the 1st Belgian Infantry Brigade, called the "Piron Brigade", between 1942 and 1944.