Boelcke-Kaserne concentration camp (transl. Boelcke Barracks; also Nordhausen) was a subcamp of the Mittelbau-Dora concentration camp complex where prisoners were left to die after they became unable to work. It was located inside a former Luftwaffe barracks complex in Nordhausen, Thuringia, Germany, adjacent to several pre-existing forced labor camps. During its three-month existence, about 6,000 prisoners passed through the camp and almost 3,000 died there under "indescribable" conditions. More than a thousand prisoners were killed during the bombing of Nordhausen by the Royal Air Force on 3–4 April 1945. Their corpses were found by the US Army units that liberated the camp on 11 April. Photographs and newsreel footage of the camp were reported internationally and made Nordhausen notorious in many parts of the world.