World War, 1939-1945 301 History 204 Holocaust, Jewish (1939-1945) 184 Nazi concentration camps 157 Concentration camps 152 Internment camps 97 Jews 88 Japanese Americans 80 HISTORY 78 Forced removal and internment, 1942-1945 72 Prisoners and prisons, German 41 Atrocities 38 Holocaust survivors 37 Prisoners of war 35 General 30 Holocaust 30 Ethnic relations 29 Western 29 Psychological aspects 28 Politics and government 26 Persecutions 23 Political prisoners 23 Social conditions 23 BIOGRAPHY & AUTOBIOGRAPHY 21 SOCIAL SCIENCE 21 Nazi concentration camp inmates 19 World War II 19 History and criticism 18 Military 18 Documentary films 17