he Dora-Mittelbau concentration camp began as a subcamp in the Buchenwald system. This camp used prisoners to build weapons of vengeance like V-2 rockets. From its formation in 1943 until 1944, laborers were kept underground continuously digging tunnels and building armaments. Many of these prisoners died of exhaustion and from the poor conditions. The men held in this camp resisted Nazi rule by sabotaging weapons and slowing production. Once Allied forces began closing in on the camp, the SS marched most of the prisoners to Dachau where thousands perished along the way. When Americans liberated the camp, they freed the prisoners and stopped a large hub of Nazi weapons production.