History World War, 1939-1945 31 Campaigns 6 Military campaigns 6 Armed Forces 5 Soldiers 5 Underground movements 5 more ... War 5 Aerial operations, American 4 American 4 Jews 4 Military operations, Aerial 4 Regimental histories 4 Generals 3 Holocaust, Jewish (1939-1945) 3 Prisoners of war 3 Ethnic relations 2 Photographers 2 Photography 2 Refugees 2 Secret service 2 Aachen, Battle of, Aachen, Germany, 1944 1 Aeronautics 1 Air pilots 1 Airborne troops 1 Airmen 1 Americans 1 Anti-Nazi movement 1 Ardennes, Battle of the, 1944-1945 1 Armored troops 1 less ...