Forced labor History 111 Human trafficking 33 World War, 1939-1945 30 Internment camps 28 Social conditions 28 Political prisoners 27 更多 ... Slavery 27 Prisons 20 Prostitution 18 Conscript labor 17 Holocaust, Jewish (1939-1945) 16 Politics and government 15 Colonies 13 Economic conditions 13 Slave labor 13 Human rights 12 Labor 12 Concentration camps 11 Nazi concentration camps 11 Economic aspects 10 Political persecution 10 Slave trade 10 Social aspects 10 Prevention 9 Jews 8 Administration 7 Child labor 7 Crimes against 7 Prisoners 7 少 ...