Institutional seats of the European Union the ECSC (or be generously compensated); France supported Strasbourg, and Italy continued to promote Milan. However, it was decided that the Common Assembly, which became the Parliament, should instead be based in Strasbourg—the Council of Europe (CoE) was already based there, in the House of Europe. The chamber of the CoE's Parliamentary Assembly could also serve the Common Assembly, and they did so until 1999, when a new complex of buildings was built across the river from the Palace. The creation in 1957 of the European Economic Community (EEC) and the European Atomic Energy Community (EAEC or Euratom) created new
European institutions in Strasbourg in Brussels and Luxembourg city. The split arrangement has caused financial, environmental and practical difficulties, with the Strasbourg location usually (though not universally) being cited as the extraneous location rather than Brussels. The École nationale d'administration, founded in 1945 in Paris, was moved to Strasbourg by decree in 1991 and permanently established there in 2005 (although the headquarters had been transferred from the start, the students had to spend half of their annual curricula in either city until that date). In the course of its refocusing on European governance, it merged with the Centre d'études européennes de Strasbourg (Center for