Treaties of the European Union the Functioning of the European Union (originally signed in Rome in 1957 as the Treaty establishing the European Economic Community, aka The Treaty of Rome), lay out how the EU operates, and there are a number of satellite treaties which are interconnected with them. The treaties have been repeatedly amended by other treaties over the 65 years since they were first signed. The consolidated version of the two core treaties is regularly published by the European Commission. The two principal treaties on which the EU is based are the Treaty on European Union (TEU; Maastricht Treaty, effective since 1993) and
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