Charles de Gaulle also quarreled with Washington over the admission of Britain into the European Economic Community. These and other tensions led to de Gaulle's decision in 1966 to withdraw French forces from the integrated military structure of the North Atlantic Treaty Organisation and forced it to move its headquarters to Belgium. De Gaulle's foreign policy was centered on an attempt to limit the power and influence of both superpowers, which would increase France's international prestige in relative terms. De Gaulle hoped to move France from being a follower of the United States to a leading first-world power with a large following among certain non-aligned Third World countries. The nations de Gaulle considered potential participants in this grouping were those in France's traditional spheres of influence, Africa and the Middle East.