In 1944, a German aerospace engineer along with his team invented first long-range ballistic missile for Nazi Germany but it was built by concentration camp prisoners under brutal conditions, laying the foundation for both the American and Soviet space programs

In 1944, a German aerospace engineer along with his research team invented the first long-range ballistic missile secretly for Nazi Germany during World War II while it was built by concentration camp prisoners and forced laborers under brutal conditions, laying the foundation for both the American and Soviet space programs. The weapon was the V-2 rocket, also known by its earlier German designation, A-4. The programme was led by German engineer Wernher von Braun and other engineers and scientists working for the German military. The development of the rocket started before 1944. By that year, the V-2 had become a weapon used by Nazi Germany against Allied targets.

The V-2 combined rocket propulsion, guidance systems and a ballistic flight path in a way that changed missile development. Its history, however, cannot be separated from the forced labor system used to manufacture it.

How the V-2 rocket was developed?

The V-2 programme was connected to the German rocket research centre at Peenemünde on the Baltic coast. German engineers worked there on rockets that could travel long distances. The British bombing of Peenemünde in August 1943 led Nazi authorities to move much of the production programme underground. Machinery and production operations were moved to the Nordhausen area in central Germany.

The new underground production complex became known as Mittelwerk. It was located inside tunnels in the Kohnstein mountain. The concentration camp associated with the factory was Mittelbau-Dora. It began as a subcamp of Buchenwald in 1943 and became an independent concentration camp system in October 1944.

The prisoners were forced to expand tunnels and later work in missile production. Many were kept underground for long periods without sufficient daylight, fresh air or sanitation. The United States Holocaust Memorial Museum records disease, exhaustion, hunger and violence in the camp system.

What made the V-2 different?

The V-2 was the world's first operational long-range ballistic missile. It used liquid oxygen and alcohol as propellants. Its flight path also separated it from conventional aircraft. After launch, the rocket climbed into the upper atmosphere before following a ballistic path toward its target.

The missile travelled at several times the speed of sound. This meant that people on the ground generally received no warning from the sound of the approaching weapon. The V-2 was therefore difficult for Allied forces to intercept using the air-defence systems available at the time.

The missile also reached an altitude above the boundary commonly used to define the beginning of outer space. A V-2 test flight in June 1944 reached about 175 kilometres, or 109 miles. This gave the V-2 a place in the history of spaceflight as well as military technology.

The human cost of production

The development of the V-2 came with a human cost. Concentration camp prisoners were used to construct the underground tunnels and manufacture the missiles. The work included excavation, transportation, assembly and other factory tasks. The Mittelbau-Dora system eventually included many subcamps. Thousands of prisoners worked in the underground facilities.

The United States Holocaust Memorial Museum says that prisoners initially spent much of their time inside the tunnels. They worked for long hours while facing hunger, disease, exhaustion and violence. Prisoners accused of sabotage could be executed. More than 200 prisoners were publicly hanged for alleged sabotage.

The wider Mittelbau system had tens of thousands of prisoners. By March 1945, about 40,000 prisoners were held in the system, although not all were directly employed in missile production. Many were forced to work on construction and mining projects.

The death toll was more than 20,000. Many prisoners died from disease, hunger, exhaustion, abuse and executions. Thousands more died during the evacuations at the end of the war. This makes the history of the V-2 different from a simple account of engineering development. The missile was manufactured through a system of forced labor operated by Nazi Germany.

What was Wernher von Braun's role?

Wernher von Braun was one of the central figures in the German rocket programme. He served as technical director of the V-2 project. His later career became connected with the American space programme. After World War II, he and other German rocket specialists were taken to the United States under programmes associated with the American effort to obtain German military technology and expertise.

The history of von Braun also includes his involvement with the Nazi rocket programme and the production system that used concentration camp prisoners. Historical accounts document his visits to the Mittelwerk facility and his knowledge of the conditions surrounding production. The relationship between von Braun, the SS, the German military and forced labour has remained part of the historical assessment of his wartime career.

How the Allies captured the V-2 technology?

The defeat of Nazi Germany in 1945 created a competition among the United States, Soviet Union, Britain and France to obtain German missile technology. The United States captured V-2 parts, documents, production equipment and German specialists. This effort became connected to Operation Paperclip.

Captured V-2 components were transported to the United States. At White Sands in New Mexico, American teams assembled and launched V-2 rockets for testing. These launches were used for research into the upper atmosphere as well as missile technology. The V-2 therefore became an early research vehicle for American scientists and engineers.

The Soviet Union also obtained V-2 technology and personnel from areas under its control. Soviet engineers studied the German design and used it as a starting point for the development of the R-1 missile.

Britain also carried out its own V-2 tests through Operation Backfire. British forces assembled and launched three V-2 rockets near Cuxhaven in October 1945 with assistance from German technicians. The results were recorded and shared with other Allied countries.

How the V-2 influenced the space race?

The V-2 did not directly become a complete space programme. Its importance came from the technology and engineering experience that the Allies acquired after the war. The missile demonstrated how liquid-fuel rockets could be guided over long distances and could reach the upper atmosphere.

American and Soviet engineers later developed their own rockets using knowledge gained from German research and captured equipment. The United States eventually used rocket technology derived in part from German wartime work in its space programme. Von Braun later became a major figure in the development of the Saturn V rocket used for the Apollo Moon missions.

The Soviet Union also used German rocket knowledge during its early postwar missile development. Its R-1 was based on the V-2 design, although Soviet engineers later developed their own rocket systems. The V-2 therefore became one of the links between World War II missile development and the Cold War space programmes.

What happened to Mittelbau-Dora?

By 1945, Germany was losing the war. The V-2 production system continued until the final months of the conflict. As Allied forces approached, the SS began evacuating prisoners from Mittelbau-Dora. Prisoners were sent away by train and on forced marches. Many died during these evacuations.

American troops reached Nordhausen and Mittelbau-Dora in April 1945. They found dead prisoners and survivors suffering from starvation and disease. The US Holocaust Memorial Museum records that the 104th Infantry Division reached the camp on April 11, 1945, and found thousands of corpses and hundreds of surviving prisoners. The liberation exposed the conditions under which the V-2 programme had operated.

Why the V-2 remains part of rocket history?

The V-2 occupies two parts of history. From a technology perspective, it demonstrated a form of long-range ballistic flight that became important to later missile development. Its liquid-fuel propulsion, guidance and flight systems influenced work in the United States and Soviet Union.

From a historical perspective, the V-2 is linked to Nazi Germany, forced labor and the concentration camp system. The underground Mittelwerk factory was not simply a military production facility. It was part of a system in which prisoners were forced to work under conditions that caused thousands of deaths.

The technology later contributed to developments in missile and space engineering, but that later history does not remove the conditions under which the weapon was produced. The story of the V-2 therefore connects World War II, Nazi Germany, concentration camp forced labor, ballistic missile development and the early American and Soviet space programmes.