The 24th Waffen Mountain Division of the SS Karstjäger was a German mountain infantry division of the Waffen-SS, the armed wing of the German Nazi Party that served alongside but was never formally part of the Wehrmacht during World War II. Named Karstjäger, it was one of the thirty-eight divisions fielded by the Waffen-SS. Formed on 18 July 1944 from the SS Volunteer Karstwehr Battalion, its nominal strength was never more than theoretical and the division was soon reduced to the Waffen Mountain (Karstjäger) Brigade of the SS. Throughout its existence as a battalion, division and brigade, it was primarily involved in fighting partisans in the Karst region on the frontiers of Yugoslavia, Italy, and Austria; the mountainous terrain required specialized mountain troops and equipment.