World War, 1939-1945 History 198 Campaigns 132 Holocaust, Jewish (1939-1945) 59 Atrocities 54 Guerre mondiale, 1939-1945 54 Jews 45 more ... Politics and government 42 Regimental histories 42 Aerial operations, German 36 National socialism 31 Naval operations, German 30 Foreign relations 28 Naval operations 26 Diplomatic history 25 Prisoners and prisons, German 23 Concentration camps 22 Soldiers 22 Tank warfare 22 Submarine 20 Prisoners of war 18 Secret service 15 Underground movements 15 Persecutions 14 Histoire 13 Refugees 13 Anti-Nazi movement 12 Personal narratives, German 12 Women 12 Armed Forces 11 less ...