Buchenwald concentration camp, located near Weimar in central Germany, was established in 1937 and had at least 88 subcamps. Initially, political prisoners were held at Buchenwald but after Kristallnacht in 1938, nearly 10,000 Jewish men were sent to Buchenwald. Inmates were subjected to harsh conditions and forced labour, including medical experiments to ‘cure’ homosexuals. In the last months of the war, thousands of prisoners were expelled from Buchenwald on death marches. However, as the American forces approached the camp in April 1945, the remaining prisoners revolted and took control of the camp. Over 250,000 people were imprisoned at Buchenwald, and at least 56,000 were killed there.