Belgium controlled several territories and concessions during the colonial era, principally the Belgian Congo from 1908 to 1960, Ruanda-Urundi from 1922 to 1962, and Lado Enclave from 1884 to 1910. It also had small concessions in Guatemala (1843–1854) and Belgian concession of Tianjin in China (1902–1931) and was a co-administrator of the Tangier International Zone in Morocco.

Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to the south, and the North Sea to the west. It covers an area of 30,689 km2 (11,849 sq mi) and has a population of more than 11.5 million, making it the 22nd most densely populated country in the world and the 6th most densely populated country in Europe, with a density of 376/km2 (970/sq mi). Belgium is part of an area known as the Low Countries, historically a somewhat larger region than the Benelux group of states, as it also included parts of northern France. The capital and largest metropolitan region is Brussels; other major cities are Antwerp, Ghent, Charleroi, Liège, Bruges, Namur, and Leuven.