World War, 1939-1945 History 3,793 Campaigns 1,532 Holocaust, Jewish (1939-1945) 748 Jews 637 Foreign relations 567 Politics and government 542 more ... Social aspects 368 Atrocities 363 Diplomatic history 353 Underground movements 350 Social conditions 308 Aerial operations, American 292 Prisoners of war 252 Regimental histories 250 Soldiers 245 History, Military 238 Influence 224 Ethnic relations 221 Secret service 220 Women 215 History and criticism 213 Rescue 211 Concentration camps 210 Causes 208 World War, 1914-1918 183 Prisoners and prisons, German 181 Refugees 177 Naval operations 175 Aerial operations, British 173 less ...