Dear Student,
The ethnic composition of Belgium is very complex because in that country Dutch-speaking people are in the majority ( 59 %),
while French and German-speaking is respectively 40% and 1%.
The French live in the Wallonia region and the Dutch lives in the Flemish region. While this is the case in the country, the capital, Brussels has French-speaking people as the majority ( 80%) and Dutch 20%.
Regards,