History HISTORY 60 World War, 1939-1945 53 Military 40 Guerre mondiale, 1939-1945 33 Campaigns 30 Histoire 28 BIOGRAPHY & AUTOBIOGRAPHY 27 World War II 27 Historical 25 Military campaigns 24 Armed Forces 21 Campagnes et batailles 19 Regimental histories 18 American 15 Histoire des unités 13 Soldiers 13 Vietnam War, 1961-1975 12 Aerial operations, American 11 Military operations, Aerial 11 Western 10 Officers 9 World War, 1914-1918 9 Guerre mondiale, 1914-1918 8 Weltkrieg 8 General 7 Medical care 7 Prisoners of war 7 Veterans 7 Americans 6