World War, 1939-1945 History 241 Campaigns 137 Guerre mondiale, 1939-1945 70 Holocaust, Jewish (1939-1945) 65 Atrocities 58 Jews 51 more ... Aerial operations, German 44 Politics and government 44 Regimental histories 42 Naval operations, German 39 National socialism 36 Naval operations 29 Prisoners and prisons, German 28 Tank warfare 26 Concentration camps 25 Foreign relations 25 Soldiers 24 Diplomatic history 23 Refugees 23 Submarine 23 Histoire 21 Prisoners of war 21 Destruction and pillage 20 Underground movements 19 Women 17 Nazis 15 Secret service 15 Persecutions 14 Armed Forces 13 less ...