German invasion of Belgium 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. The German
Nazi Germany conquered territories were incorporated into Germany as part of Hitler's long-term goal of creating a Greater Germanic Reich. Several areas, such as Alsace-Lorraine, were placed under the authority of an adjacent "Gau" (regional district). Beyond the incorporated territories were the "Reichskommissariate" (Reich Commissariats), quasi-colonial regimes established in some occupied countries. Areas placed under German administration included the Protectorate of Bohemia and Moravia, "Reichskommissariat Ostland" (encompassing the Baltic states and Belarus), and "Reichskommissariat Ukraine". Conquered areas of Belgium and France were placed under control of the Military Administration in Belgium and Northern France. Belgian Eupen-Malmedy, which had been part of Germany