Retrospectively annexed directly into the Greater German Reich in December 1944 as the new Reichsgaue of Flanders, Wallonia and Brussels, although most of the region was no longer under German control at the time.)
In December 1944, these areas – Flanders, Wallonia, and Brussels – were retroactively incorporated into the Greater German Reich as part of its new Reichsgaue. At that time, however, much of the region was no longer under German influence.