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
Alfred Gruenther of Staff in 1947-1949. In 1949, he was promoted to the rank of lieutenant general and served as the U.S. Army's deputy chief of staff for plans and operations. In 1951, Gruenther was promoted to four-star general and appointed as the Chief of Staff, Supreme Headquarters Allied Powers Europe (COFS SHAPE) under Gen. Eisenhower, who became the Supreme Allied Commander Europe (SACEUR). He continued to serve under Gen. Matthew Ridgway and later replaced him as SACEUR. From 11 July 1953 to 20 November 1956, he was Supreme Allied Commander, Europe/Commander in Chief, U.S. European Command (SACEUR/USCINCEUR). On December 31, 1956,