SS-Truppenübungsplatz Heidelager
SS-Truppenübungsplatz Heidelager was a World War II SS military complex and Nazi concentration camp in Pustków and Pustków Osiedle, Occupied Poland. The Nazi facility was built to train collaborationist military units, including the Ukrainian 14th Waffen SS Division "Galician", the Flemish Legion, and the Estonian Legion.
Source: Wikipedia — SS-Truppenübungsplatz Heidelager (CC BY-SA 4.0)