History 46 World War, 1939-1945 39 Histoire 15 Underground movements 11 Guerre mondiale, 1939-1945 10 War 8 Holocaust, Jewish (1939-1945) 7 more ... Jews 7 Atrocities 5 Juifs 4 Mouvements de résistance 4 Atrocités 3 History, Local 3 Underground movements, War 3 African Americans 2 Armed Forces 2 Civilian relief 2 Civilian war relief 2 Ethnic relations 2 Generals 2 Holocauste, 1939-1945 2 International relations 2 Polish Americans 2 Politics and government 2 Relations 2 Slovenian Americans 2 Societies, etc 2 Speeches, addresses, etc., Polish 2 Aerial operations, American 1 African American 1 African American air pilots 1 Airmen 1 American 1 Archival resources 1 Archives 1 Aviateurs (Militaires) 1 Buitenlandse betrekkingen 1 Collaborateurs 1 Collaborationists 1 Czech Canadians 1 less ...