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Subject
- Prisoners of war101
- History59
- World War, 1939-194531
- Prisoners and prisons24
- Concentration camps17
- Prisoners and prisons, German14
- Mauthausen (Concentration camp)13
- Atrocities10
- Political persecution6
- Refugees6
- Spaniards6
- United States. Central Intelligence Agency5
- Civil War (Spain : 1936-1939)4
- Government policy4
- Holocaust, Jewish (1939-1945)4
- Politics and government4
- Prisoners and prisons, Spanish4
- Slavery4
- Assassination3
- Conscript labor3