Belgium became the host nation for both NATO's political headquarters and SHAPE. General Lyman Lemnitzer, SACEUR at the time, had hoped that SHAPE could be located near to NATO Headquarters, as had been the case in Paris, but the Belgian authorities decided that SHAPE should be located at least 50 kilometres from Brussels, NATO's new location, because SHAPE was a major wartime military target. The Belgian 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.