Greater Belgium

[1][2] To a lesser degree, they also claimed the Dutch province of North Brabant[3] and the French Netherlands (Nord-Pas-de-Calais).

The young state also claimed North Brabant and Zeelandic Flanders, but was unable to conquer this territory.

In 1839, Belgium's borders were officially recognised, but it had to give up eastern Limburg and Luxembourg.

In 1919, Luxembourg held a referendum which could've led to a Belgian on the throne, but this was rejected by its population.

After World War II, Belgium again annexed a few German border regions, although it returned most of them in 1958, keeping only the towns of Losheimergraben (Büllingen) and Leykaul (Bütgenbach).