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
Yugoslavia and the European Economic Community EEC has been opened. In 1977 the EEC granted access to the European Investment Bank to Yugoslavia. By 1980 European Investment Bank granted two loans in total value of 50 million of ECUs to link the Yugoslav high-voltage electricity distribution network to the Greek and Italian grids and for the construction of part of the trans-Yugoslav road. In 1978, the European Community and the Yugoslavia began negotiations on a Cooperation Agreement, which was signed in April 1980 and entered into force in April 1983. Cooperation Agreement contained provisions concerning trade, financial aid and cooperation in the areas of industry, science