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 Headquarters Allied Powers Europe was shunted aside in favor of Air Force general Joseph Ralston. Although the move was publicly characterized as a purely administrative move necessitated by Clark's approaching retirement and the lack of an open four-star slot for the highly respected Ralston [a reality which would have compelled him to either accept a temporary demotion to two-star rank or retire from the service], Clark's relief has been often seen as a slap at the general on the part of a Pentagon leadership that had been very much at odds with him during the Kosovo war the previous spring. From the early 2000s