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.
Military Administration in Belgium and Northern France to ensure its good behavior. The Military Administration formed the core of a wider command structure which allowed the governance of occupied Belgium. It could rely on both military and civilian components: Military Administration in Belgium and Northern France The Military Administration in Belgium and Northern France () was an interim occupation authority established during the Second World War by Nazi Germany that included present-day Belgium and the French departments of Nord and Pas-de-Calais. The administration was also responsible for governing the "zone interdite", a narrow strip of territory running along the French northern and eastern borders. It remained in