History of Belgium on matters of religion and, in recent decades, it has faced new divisions over differences of language and unequal economic development. This ongoing antagonism has caused far-reaching reforms since the 1970s, changing the formerly unitary Belgian state into a federal state, and repeated governmental crises. It is now divided into three regions: Flanders (Dutch-speaking) in the north, Wallonia (French-speaking) in the south, and bilingual Brussels in the middle. There is also a German-speaking population along the border with Germany that was granted to Prussia in the Congress of Vienna in 1815 but added to Belgium following the 1919 Treaty of
German-speaking Community of Belgium were annexed by Belgium following Germany's defeat in World War I and the subsequent Treaty of Versailles. Thus they also became known as the ', "redeemed cantons". The peace treaty of Versailles demanded the "questioning" of the local population. People who were unwilling to become Belgians and wanted the region to remain a part of Germany were required to register themselves along with their full name and address with the Belgian military administration, headed by Herman Baltia, and many feared reprisals or even expulsion for doing so. In the mid-1920s, there were secret negotiations between Germany and the kingdom of