Hypothetical partition of Belgium
The partition of Belgium is a hypothetical situation, which has been discussed by both Belgian and international media, envisioning a split of Belgium along linguistic divisions, with the Flemish Community (Flanders) and the French-speaking Community (Wallonia) becoming independent states. Alternatively, it is hypothesized that Flanders could join the Netherlands (Greater Netherlands movement) and Wallonia could join France (Rattachist movement) or Luxembourg.
Source: Wikipedia — Hypothetical partition of Belgium (CC BY-SA 4.0)