European Communities and a European Political Community failed leading to a return to economic matters. In 1957, the EAEC and EEC were created by the Treaties of Rome. They were to share some of the institutions of the ECSC but have separate executive structures. The ECSC's aim was to combine the coal and steel industries of its members to create a single market in those resources. It was intended that this would increase prosperity and decrease the risk of these countries going to war through the process of European integration. The EAEC was working on nuclear energy co-operation between the members. The
High Authority of the European Coal and Steel Community in Luxembourg's city hall on 10 August 1952. Jean Monnet, the architect of the ECSC, was elected as its first President. The supranational power exercised by the Authority did prompt suspicion by some, for example the government of France who ensured that in the European Economic Community (EEC) and European Atomic Energy Community (Euratom) more power would be in the hands of the Council. The Merger Treaty came into force in 1967; this combined the independent institutions of the ECSC and Euratom with those of the EEC. From that time the High Authority ceased to exist, its duties being taken