Supreme Headquarters Allied Powers Europe (SHAPE) is the headquarters of the North Atlantic Treaty Organization's Allied Command Operations. Since 1967 it has been located at Casteau, north of the Belgian city of Mons, but it had previously been located, from 1953, at Rocquencourt, next to Versailles, France. From 1951 to 2003, SHAPE was the headquarters of Allied Command Europe, ACE. Since 2003 it has been the headquarters of Allied Command Operations (ACO), controlling all NATO operations worldwide.