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 Socialist Federal Republic of Yugoslavia was the first East European nation for which the Council of the European Economic Community accepted the possibility to start technical talks on cooperation. Ministry of Foreign Affairs of Yugoslavia held topical meeting on Yugoslav relations with Western European states on February 26, 1964 concluding that those relations are continually improving. During the meeting special attention was given to the Yugoslav relations with West Germany where Ministry commended results in mutual trade, tourist visits and scientific cooperation. On the other hand Ministry have criticized German toleration of disruptive activities of post-World War II anti-Yugoslav emigration,