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, the regions of Flanders, Wallonia, and Brussels were retrospectively added to the Greater German Reich's new Reichsgaue. Nonetheless, by then, most parts of this area were not controlled by Germany anymore.