Belgium is comprised of Wallonia, Flanders and the Brussels Capital.
Belgium . Its two largest regions are the Dutch-speaking region of Flanders in the north and the French-speaking southern region of Wallonia . The Brussels-Capital Region is an officially bilingual ( French and Dutch ) enclave within the Flemish Region . The second half of the 20th century was marked by rising tensions between the Dutch-speaking and the French-speaking citizens fueled by differences in language and culture and the unequal economic development of Flanders and Wallonia . Brussels ( Bruxelles , [ bʁysɛl ] ; Brussel , [ ˈbrɵsəl ] ) , officially the Brussels-Capital Region ( Région de Bruxelles-Capitale , Brussels Hoofdstedelijk Gewest ) , is a region of Belgium comprising 19 municipalities , including the City of Brussels which is the capital of Belgium .