The Paris Agreement came into effect on May 5, 1955, after the French Parliament rejected the Treaty of the European Defence Group, and the United States actively sought a new way of armed West Germany. From September 28 to October 3, 1955, the North Atlantic Treaty member states, such as Britain and France, remained in the West with the Foreign Ministers of the Federal German Federation in London to negotiate the matter. Then, on October 21 to 23, 1954, the French Parliament met in Paris to reach a series of agreements to unify the Paris Agreement. The main content was that Britain and the United States ended the occupation of the Federal German Federation, but the troops of the three countries remained in the West; the Federal German Federation accepted the participation of the Western European Union and the Northern Treaty, allowing it to