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 reached. Future executives, the Commissions of the EEC and Euratom, would eventually be based in Brussels. High Authority of the European Coal and Steel Community The High Authority was the executive branch of the former European Coal and Steel Community (ECSC). It was created in 1951 and disbanded in 1967 when it was merged into the European Commission. The High Authority was at the core of the idea of the ECSC. It was to be an independent, supranational executive checked by a Common Assembly. There were concerns about this power, leading to a Council (of governments) and Parliament (of MPs)