Supreme Headquarters Allied Powers Europe government offered Camp Casteau, a 2 km² Belgian Army summer training camp near Mons, which was an area in serious need of additional economic investment. In September 1966, NATO agreed that Belgium should host SHAPE at Casteau. SHAPE closed its facility at Rocquencourt near Paris on 30 March 1967, and the next day held a ceremony to mark the opening of the new headquarters at Casteau. The drawdown of the British Mediterranean Fleet, the military difficulties of the politically decided command structure, and the withdrawal of the French from the military command structure forced a rearrangement of the command arrangements
Supreme Commander for the Allied Powers 1951. When the Treaty of San Francisco came into effect on April 28, 1952, the post of SCAP lapsed. Supreme Commander for the Allied Powers The Supreme Commander for the Allied Powers (SCAP) (originally briefly styled Supreme Commander of the Allied Powers) was the title held by General Douglas MacArthur during the Allied occupation of Japan following World War II. In Japan, the position was generally referred to as GHQ (General Headquarters), as SCAP also referred to the offices of the occupation, including a staff of several hundred U.S. civil servants as well as military personnel. Some of these personnel