The genocidal policies of the German government 's colonization plan Arranging , `` Generalplan Ost '' , were the blueprint for German war Hostile_encounter crimes Committing_crime and crimes Committing_crime against humanity committed Commitment against the Polish nation from 1939 to 1945 .

After losing the First World War , German official historians of the and other writers described Statement the plan as a blueprint for victory .

Post-war writing by senior German officers like Hermann von Kuhl , Gerhard Tappen , Wilhelm Groener and the historians led by the former ( Lieutenant-Colonel ) Wolfgang Förster , managed Preventing_or_letting to establish a commonly accepted narrative that it was the failure to follow the blueprint by Moltke the Younger , rather than German strategic miscalculation , that condemned Judgment_communication the belligerents to four years of attrition warfare instead of the quick , decisive conflict it `` should '' have been .

Treating the plan as a blueprint was rejected Agree_or_refuse_to_act , because this was contrary to the tradition of Prussian war planning established by Helmuth von Moltke the Elder , in which military operations were considered to be inherently unpredictable .