World War, 1939-1945 History 1,169 Campaigns 512 Holocaust, Jewish (1939-1945) 347 Foreign relations 338 Jews 331 Politics and government 295 more ... Diplomatic history 229 Underground movements 146 Causes 131 Ethnic relations 122 Atrocities 115 Persecutions 110 Rescue 108 Aerial operations, American 100 Secret service 95 Prisoners of war 86 Social aspects 86 Social conditions 86 History, Military 83 Prisoners and prisons, German 77 Regimental histories 70 Influence 68 Concentration camps 67 Women 64 Peace 63 Naval operations 61 Economic aspects 60 World War, 1914-1918 59 World politics 59 less ...