European Parliament in Luxembourg granted a city the right to host a number bodies, including the Secretariat of the Assembly (now of the Parliament). Despite the 1965 agreement however, the Parliament's seat was a source of contention. Wishing to be closer to the activities in Brussels and Luxembourg, a few plenary sessions were held by the Parliament between 1967 and 1981 in Luxembourg instead of Strasbourg – against the wishes of France and in 1981 it returned to holding sessions entirely in Strasbourg. There are a handful of buildings in Luxembourg used by the Parliament. The city hosts the Secretariat of the European Parliament
Institutions of the European Union for the EU. Together with NATO it has attracted more journalists and ambassadors than Washington, D.C. However the three-city agreement has been criticised, notably concerning the Parliament due to the large number of people that move between the cities. The European Green Party estimated that the arrangement costs 200 million euro and 20,268 tonnes of carbon dioxide. Brussels is preferred by some due to the presence of other institutions and other groups whereas Strasbourg is supported due to its historical importance to European unity. Institutions of the European Union The institutions of the European Union are the seven principal decision