Mittelbau-Dora was a Nazi Germany

Nazi Germany

Nazi Germany , also known as the Third Reich , but officially called German Reich from 1933 to 1943 and Greater German Reich from 26 June 1943 onward, is the name commonly used to refer to the state of Germany from 1933 to 1945, when it was a totalitarian dictatorship ruled by...

 labour camp that provided workers for the Mittelwerk

Mittelwerk

Central Works was a World War II factory that used Mittelbau-Dora forced labor in 2 main tunnels in the Kohnstein. The underground facility produced V-2 rockets, V-1 flying bombs, and other Nazi weapons.-Mittelwerk GmbH:...

 V-2 rocket

V-2 rocket

The V-2 rocket , technical name Aggregat-4 , was a ballistic missile that was developed at the beginning of the Second World War in Germany, specifically targeted at London and later Antwerp. The liquid-propellant rocket was the world's first long-range combat-ballistic missile and first known...

 factory in the Kohnstein

Kohnstein

The Kohnstein is a mountain, 2 kilometres southwest of the village of Niedersachswerfen and 3 kilometres northwest of the center of the city of Nordhausen...

, situated near Nordhausen

Nordhausen

Nordhausen is a town at the southern edge of the Harz Mountains, in the state of Thuringia, Germany. It is the capital of the district of Nordhausen...

, Germany.

Approximately 60,000 prisoners from 21 nations (mostly Russians, Poles, and French) passed through Dora. An estimated 20,000 inmates died; 9000 died from exhaustion and collapse, 350 hanged (including 200 for sabotage), the remainder died mainly from disease and starvation.