History World War, 1939-1945 146 Campaigns 34 Military campaigns 33 Holocaust, Jewish (1939-1945) 31 Jews 19 Ethnic relations 16 more ... Armed Forces 14 Regimental histories 14 War 10 Collective memory 9 Military operations, Aerial 9 Underground movements 9 American 8 Atrocities 8 Concentration camps 8 Internment camps 8 Prisoners of war 8 Soldiers 8 Aerial operations, American 7 Refugees 7 Political aspects 6 Histoire 5 Influence 5 Race relations 5 Secret service 5 Historiography 4 Influence (Literary, artistic, etc.) 4 Persecutions 4 Racism 4 less ...