Nazi Slaughter House In France -- When Allied troops plunged through the Vosges Mountains near Natzweiler, France, they discovered a German concentration camp whose horrible record is one of the worst yet revealed. Known as Le Struthof, the camp for forced laborers had its own gas chamber and crematorium and was surrounded by electric wire that killed upon contact. According to Frenchmen living nearby, Le Struthof contained thousands of prisoners who repaired airplane engines, hundreds of which