Nine-Power Conference

The London and Paris Conferences were two related conferences in London and Paris in September–October 1954 to determine the status of West Germany. The talks concluded with the signing of the Paris Agreements (Paris Pacts, or Paris Accords), which granted West Germany full sovereignty, ended the occupation, and allowed its admittance to NATO. Furthermore, both West Germany and Italy joined the Brussels Treaty on 23 October 1954. The Agreements went into force on 5 May 1955. The participating powers included France, the United Kingdom, Belgium, the Netherlands, Luxembourg, West Germany, Italy, Canada, the United States, and remaining NATO members.

Since the end of World War II, West Germany had been occupied by Allied forces and lacked its own means of defense. On 23 July 1952, the European Coal and Steel Community came into existence, bonding the member states economically. By 1951, fear of possible Soviet aggression in Europe led to preparation of an ill-fated European Defense Community (EDC). EDC was a proposed joint Western European military force, at the time favored over admitting Germany to NATO. The General Treaty (German: Deutschlandvertrag) of 1952 formally named the EDC as a prerequisite of the end of Allied occupation of Germany. EDC was, however, rejected by the French National Assembly on August 30, 1954, and a new solution became necessary.

...
Wikipedia