Languages of the European Union which is understood by 51% of all adults, while German is the most widely used mother tongue, spoken by 18%. All 24 official languages of the EU are accepted as working languages, but in practice only two – English and French – are in wide general use and of these English is the more commonly used. French is an official language in all three of the cities that are political centres of the Union: Brussels (Belgium), Strasbourg (France) and Luxembourg City (Luxembourg). , the official languages of the European Union, as stipulated in the latest amendment of "Regulation No 1
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