The V2 rocket was one of the most expensive pieces of weaponry utilized during World War II. The V2 rocket was manufactured under slave labor conditions and although it was successful in its ability to kill 5000 people during its various attacks, 10,000 – 20,000 people died during its production as miscalculations and errors often occurred during the various manufacturing and testing processes. The V2 rocket was primarily built by Russian, Polish, Ukrainian, and French prisoners of war. Overworking, underfeeding, and not providing sanitation caused many deaths to these slave laborers which hindered the ability to produce the unrealistic quota demands Adolf Hitler had requested of the German military. For each V2 rocket which was produced, 6 slave laborers died. Wernher von Braun performed many calculations for the German military in terms of the amount of concentration camp slave laborers required to meet demand quotas as well as how many people were expected to die during each production run. Prisoners were often hung publicly within the labor camps as punishment for resistance or sabotage of the project