The shootings Use_firearm were conducted Action with the use Using of a proscription list ( `` Sonderfahndungsbuch Polen '' ) , compiled Submitting_documents by the Gestapo in the span of two years before the 1939 invasion Attack .

The plan Arranging was to free Releasing the troop leader Jan Bytnar `` Rudy '' , who was arrested Arrest together with his father by the Gestapo .

The failure Earnings_and_losses of the assassination Killing attempt and the intended Arranging military Military_operation that was to follow led Causation the Gestapo to arrest Arrest more than 7,000 people , of whom they executed Killing 4,980 .

The `` Intelligenzaktion '' was a major step to implementing Action `` Sonderaktion Tannenberg '' ( Operation Tannenberg ) , the installation of Nazi policemen and functionaries — from the SiPo ( composed of the Kripo and Gestapo ) , and the SD — to manage Hold the occupation and facilitate Cause_to_make_progress the realisation of `` Generalplan Ost '' , the German colonization of Poland .