Early on in the First World War Sering was preparing for Germany to be starved by a British Blockade. Erich Keup was an early key contributor to Sering’s thinking about Eastern Europe during the war. Immanuel Geiss and the Border Strip story, the Wartheland, food security, blockades, submarines, and Tirpitz are all discussed, along with the slaughter of the pigs. The inner colonial thinkers suddenly saw Germany as full and turned their sights to the newly conquered East of 1915. Sering’s journey through Poland and Latvia in 1915 was followed by plans for the settlement of two million Germans in Latvia and Courland. Sering then journeyed east in 1916. The Kingdom of Poland, German freedom, Adolf Harnack, Friedrich Meinecke, Ernst Troeltsch, and Otto Hintze are all covered here. Sering discussed the colonial potential of Belarus in the 1917 edited volume Western Russia and its Importance in the Development of Central Europe. Anti-semitism is discussed, along with Schwerin and Lindequist in the East. Schwerin very close to Ludendorff. It then covers Ober Ost, War Land on the Eastern Front, Liulevicius, Brest-Litovsk, a massive German colonial empire in the Eastin 1918, and Sering’s visit to Kiev. Land and people became race and space. The period ended in defeat.