History of the European Union Europe Declaration (1951). This principle was at the heart of the European Coal and Steel Community (ECSC) (1951), the Treaty of Paris (1951), and later the Treaty of Rome (1958) which established the European Economic Community (EEC) and the European Atomic Energy Community (EAEC). Both the ECSC and EEC were later incorporated into the European Union while the EAEC maintains a distinct legal identity despite sharing members and institutions. The Maastricht Treaty (1992) created the European Union with its pillars system, including foreign and home affairs alongside the European Community. This in turn led to the creation of the single
Treaty establishing the European Defence Community Treaty establishing the European Defence Community The Treaty establishing the European Defence Community, also known as the Treaty of Paris, is an unratified treaty signed on 27 May 1952 by the six 'inner' countries of European integration; West Germany, France, Italy, and the Benelux countries. The treaty would have created a European Defence Community (EDC) with a pan-European defence force. The treaty failed to obtain ratification in the French parliament, and consequently never entered into force. Instead, West Germany was admitted into the Western European Union (WEU), a dormant successor of the 1948 Western Union, as well as NATO. The