World War, 1939-1945 33 Holocaust, Jewish (1939-1945) 16 History 11 Campaigns 8 Military campaigns 8 Jews 7 Collective memory 6 more ... Historiography 6 Armed Forces 4 Concentration camps 4 Internment camps 4 Nazi concentration camps 4 Refugees 4 Reparations 4 War reparations 4 Airmen 3 War 3 Aerial operations, American 2 American 2 Atrocities 2 HISTORY 2 Holocaust memorials 2 Holocaust survivors 2 Jewish ghettos 2 Memorialization 2 Military operations, Aerial 2 Museums 2 Prisoners and prisons, Japanese 2 Prisoners of war 2 Social aspects 2 less ...