By October 1938 , the SD agents from Germany had organized the '' Selbstschutz '' formations in Poland . The ethnic Germans with Polish citizenship had been trained in the Third Reich in various sabotage methods and guerilla tactics . Before the war began , '' Selbstschutz '' activists from Poland compiled lists of Poles who were to be removed or executed in Operation Tannenberg . The list was distributed among Nazi death squads as the Special Prosecution Book-Poland ( germ.Sonderfahndungsbuch Polen )
Operation Tannenberg
Operation Tannenberg
Volksdeutscher Selbstschutz