Belgium–Germany border

The border between the modern states of Belgium and Germany has a length of 204 km (127 mi).

[2] The Vennbahn railway route has been Belgian territory since 1919, under the provisions of the Treaty of Versailles.

The Treaty decided that the former German area of Eupen-Malmedy should be ceded to Belgium, along with the entire Vennbahn railway route which crossed the border several times.

Due to the route of the now defunct railway, six exclaves of Germany, completely surrounded by Belgian territory, as well as one counter-enclave, were created.

Today five German enclaves remain surrounded by Belgian territory, consisting of the village Mützenich as well as parts of the districts of Monschaus and Roetgens.