Flanders
Flanders shares its borders with Wallonia in the south, Brussels being an enclave within the Flemish Region. The rest of the border is shared with the Netherlands (Zeelandic Flanders in Zeeland, North Brabant and Limburg) in the north and east, and with France (French Flanders in Hauts-de-France) and the North Sea in the west. Voeren is an exclave of Flanders between Wallonia and the Netherlands, while Baarle-Hertog in Flanders forms a complicated series of enclaves and exclaves with Baarle-Nassau in the Netherlands. Germany, although bordering Wallonia and close to Voeren in Limburg, does not share a border with Flanders. The German-speaking Community of Belgium, also close to Voeren, does not border Flanders either. (The commune of Plombières, majority French speaking, lies between them.)
History of Flanders
In 1834, all people even remotely suspected of being "Flemish minded" or calling for the reunification of the Netherlands were prosecuted and their houses looted and burnt. Flanders, until then a very prosperous European region, was not considered worthwhile for investment and scholarship. A study in 1918 demonstrated that in the first 88 years of its existence, 80% of the Belgian GDP was invested in Wallonia. This led to a widespread poverty in Flanders, forcing roughly 300.000 Flemish to emigrate to Wallonia to start working there in the heavy industry.