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 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 . Belgium is one of the six founding countries of the European Union and hosts the official seats of the European Commission , Council of the European Union , and European Council , as well as a seat of the European Parliament in the country 's capital , Brussels .