European institutions in Strasbourg seats in Strasbourg. Due to this concentration in such a small area, Strasbourg, like Brussels, claims the title of "capital of Europe". While Brussels is the capital city of a trilingual State, Belgium, Strasbourg has had long periods of rule by both France or Germany, assimilating both of their cultures and languages (it also has the Alsatian language). Strasbourg also has the distinction of being one of only three cities to host major international institutions without being a capital (the others being New York City and Geneva). In Brussels' case, it claims the title through referring to the European Union,
Institutional seats of the European Union less binding than the other seats. The 2011 Treaty Establishing the European Stability Mechanism (ESM) states that the seat of the ESM must be in Luxembourg. The ESM should be ratified and active in mid-2013 and it is allowed to establish a liaison office in Brussels. There are numerous other bodies and agencies that have not had their seats fixed by treaties. Brussels hosts the European Defence Agency (as NATO and formerly the WEU are also in the city). Luxembourg hosts the Translation Centre for the Bodies of the European Union and the European Investment Bank. Strasbourg and Brussels both