Political map of Sub-Saharan Africa 11 November 1918 (Armistice with Germany): Facing an increasing Allied buildup in Portuguese East Africa (Mozambique), German commander Lettow-Vorbeck (Paul von Lettow-Vorbeck) led his Schutztruppe north back into German East Africa before crossing into Northern Rhodesia in November 1918. At that point, World War I came to an end in Europe, with Germany accepting an armistice with the Allies.