European Union and West Germany signed the Treaty of Rome, which created the European Economic Community (EEC) and established a customs union. They also signed another pact creating the European Atomic Energy Community (Euratom) for co-operation in developing nuclear energy. Both treaties came into force in 1958. The EEC and Euratom were created separately from the ECSC, although they shared the same courts and the Common Assembly. The EEC was headed by Walter Hallstein (Hallstein Commission) and Euratom was headed by Louis Armand (Armand Commission) and then Étienne Hirsch. Euratom was to integrate sectors in nuclear energy while the EEC would develop
European Economic Community In place of the ECSC's Council of Ministers was the Council of the European Economic Community, and in place of the High Authority was the Commission of the European Communities. There was greater difference between these than name: the French government of the day had grown suspicious of the supranational power of the High Authority and sought to curb its powers in favour of the intergovernmental style Council. Hence the Council had a greater executive role in the running of the EEC than was the situation in the ECSC. By virtue of the Merger Treaty in 1967, the executives of