History of the European Coal and Steel Community (1945–57) as it would with the Court of Justice. However they would not share the ECSC's Council of High Authority. The two new High Authorities would be called Commissions, this was due to a reduction in their powers. France was reluctant to agree to more supranational powers and hence the new Commissions would only have basic powers and important decisions would have to be approved by the Council, which now adopted majority voting. Thus, on 25 March 1957, the Treaties of Rome were signed. They came into force on 1958-01-01 establishing the European Economic Community (EEC) and the European Atomic Energy
Treaty establishing the European Defence Community 1952, with French support. The new EDC treaty was signed on 27 May 1952. Although with some doubts and hesitation, the United States and the six members of the European Community approved the Pleven Plan. This led the way to the Paris Conference, launched in February 1951, where it was negotiated the structure of the supranational army. Among compromises and differences, on 27 May 1952 the six foreign ministers signed the Treaty of Paris establishing the European Defence Community (EDC). Despite the central role for France, the EDC plan collapsed when it failed to obtain ratification in the French Parliament.