Drang nach Osten
As geopolitics, the "Septemberprogramm" itself is a documentary insight to Imperial Germany's war aims, and shows the true scope of German plans for territorial expansion in two directions, east and west. Historian Fritz Fischer wrote that the "Septemberprogramm" was based on the "Lebensraum" philosophy as well as the Drang nach Osten nationalist movement of the 19th century, which made territorial expansion Imperial Germany's primary motive for war.