Supreme Allied Commander Europe Supreme Allied Commander Europe The Supreme Allied Commander Europe (SACEUR) is the commander of the North Atlantic Treaty Organization's (NATO) Allied Command Operations (ACO) and head of ACO's headquarters, Supreme Headquarters Allied Powers Europe (SHAPE). The commander is based at SHAPE in Casteau, Belgium. SACEUR is the second-highest military position within NATO, below only the Chairman of the NATO Military Committee in terms of precedence. SACEUR has always been held by a U.S. military officer, and the position is dual-hatted with that of Commander of United States European Command. The current SACEUR, General Curtis M. Scaparrotti, has held the position
Supreme Commander for the Allied Powers 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 effectively wrote a first draft of the Japanese Constitution, which the National Diet then ratified after a few amendments.