The Intelligenzaktion, or the Intelligentsia mass shootings, was a series of mass murders which was committed against the Polish intelligentsia early in the Second World War (1939–45) by Nazi Germany. The Germans conducted the operations in accordance with their plan to Germanize the western regions of occupied Poland, before their territorial annexation to the German Reich.
In occupied Poland, on 9 September 1939, the Germans publicly executed twenty-five prominent citizens, before the Municipal Museum, in the Market Square of Bydgoszcz, as part of the mass shootings of Polish intelligentsia. To terrorise the townsfolk, the Germans displayed the bodies for six hours.