What is "polenlager"

The Polenlager (, Polish Camps) was a system of labor and Nazi concentration camps for Poles in Silesia during the Nazi German occupation of Poland in World War II. The prisoners, originally destined for deportations across the border to the new semi-colonial district of the General Government, were sent there between 1942 and 1945, once the other locations became too overcrowded to accommodate them. There were over 30 Polenlager camps in existence, mostly in Silesia.