History 27 World War, 1939-1945 24 Campaigns 18 Biography 10 Personal narratives, British 8 Swords 8 20th century 6 Great Britain 6 Aerial operations, British 5 History, Military 5 Islam 4 Armed Forces 3 Foreign relations 3 Jihad 3 Prisoners and prisons, Japanese 3 Regimental histories 3 Aerial operations, American 2 Christianity 2 Christianity and other religions 2 Collectors and collecting 2 Generals 2 Iraq War, 2003 2 Islamic Empire 2 Malayan Emergency, 1948-1960 2 Military weapons 2 Naval War College (v.s.) 2 Naval operations, American 2 Naval operations, Japanese 2 Pictorial works 2 Political activity 2