Brussels (French: Bruxelles, [bʁysɛl]; Dutch: Brussel, [ˈbrɵsəl]), officially the Brussels-Capital Region (French: Région de Bruxelles-Capitale, Dutch: Brussels Hoofdstedelijk Gewest), is a region of Belgium comprising 19 municipalities, including the City of Brussels which is the capital of Belgium. The Brussels-Capital Region is a part of both the French Community of Belgium and the Flemish Community, but is separate from the region of Flanders (in which it forms an enclave) or Wallonia. The region has a population of 1.2 million and a metropolitan area with a population of over 1.8 million, the largest in Belgium.
Since the end of the Second World War, Brussels has been a major centre for international politics and has become the home of numerous international organizations, politicians, diplomats and civil servants. Brussels is the de facto capital of the European Union as it hosts a number of principal EU institutions (the other administrative centres are Luxembourg and Strasbourg). The secretariat of the Benelux and the headquarters of the North Atlantic Treaty Organization (NATO) are also located in Brussels.
It has seen a language shift to French from the late 19th century onwards. Today the majority language is French, and the Brussels-Capital Region is an officially bilingual enclave within the Flemish Region. All road signs, street names, and many advertisements and services are shown in both languages. Brussels is increasingly becoming multilingual with increasing numbers of migrants, expatriates and minority groups speaking their own languages.