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
Structure of NATO Operations retained the title "Supreme Allied Commander Europe", and remains based at SHAPE at Casteau. He is a U.S. four-star general or admiral with the dual-hatted role of heading United States European Command, which is headquartered in Stuttgart, Germany. ACO includes Joint Force Command Brunssum in the Netherlands, Joint Force Command Naples in Italy, and Joint Command Lisbon in Portugal, all multi-national headquarters with many nations represented. From 2003, JFC Brunssum had its land component, Allied Land Component Command Headquarters Heidelberg at Heidelberg, Germany, its air component, Allied Air Command Ramstein, at Ramstein in Germany, and its naval component at