German invasion of Belgium Journals Websites German invasion of Belgium The German invasion of Belgium was a military campaign which began on 4 August 1914. Earlier, on 24 July, the Belgian government had announced that if war came it would uphold its historic neutrality. The Belgian government mobilised its armed forces on 31 July and a state of heightened alert () was proclaimed in Germany. On 2 August, the German government sent an ultimatum to Belgium, demanding passage through the country and German forces invaded Luxembourg. Two days later, the Belgian Government refused the demands and the British Government guaranteed military support to Belgium.
Reichskommissariat of Belgium and Northern France Reichskommissariat of Belgium and Northern France The "Reichskommissariat" of Belgium and Northern France was a German civil administration ("Zivilverwaltung") which governed German-occupied Belgium during World War II. The "Reichskommissariat" replaced an earlier military government, the Military Administration in Belgium and Northern France, established in the same territory in 1940. On 18 July 1944, the first Gauleiter, Josef Grohé, was named the first "Reichskommissar" of the territory, known as the "Reichskommissariat Belgien und Nordfrankreich" or "Reichskommissariat für die besetzten Gebiete von Belgien und Nordfrankreich". The territory was mostly liberated by the Allies in September 1944, in the aftermath of the Normandy