Brussels and the European Union a provisional seat, though with the Common Assembly in Strasbourg as that was the only city with a large enough hemicycle (the one used by the Council of Europe). This agreement was temporary, and plans were set to relocate the institutions to Saarbrücken which would serve as a "European District", but this did not occur. The 1957 Treaties of Rome established two new communities, the European Economic Community (EEC) and the European Atomic Energy Community (Euratom). These shared the Assembly and Court of the ECSC but created two new sets of Councils and Commissions (equivalent to the ECSC's High Authority).
Yugoslavia and the European Economic Community Yugoslavia and the European Economic Community From the establishment of the European Economic Community (later expanded into the European Union) in 1957 until the breakup of Yugoslavia in the early 1990’s, thus during the Cold War period, the Socialist Federal Republic of Yugoslavia was the only communist country in Eastern Europe which developed close relations with the organisation. Notwithstanding the occasional and informal proposals coming from both sides, Yugoslavia has never become a full member state of the EEC. Mutual interactions between the two sides have intensified in the late 1980’s and early 1990’s but all agreements were cut off