History 265 World War, 1939-1945 142 Biography 122 Foreign relations 100 Politics and government 87 Great Britain 67 Military policy 46 World War, 1914-1918 39 History, Military 36 Campaigns 30 Army 27 Management 25 Secret service 24 Regimental histories 23 Armed Forces 22 Colonies 20 Law 20 Aerial operations, British 19 Prime Ministers 19 Generals 18 Intelligence service 18 Law and legislation 18 History, Naval 17 Personal narratives, British 17 20th century 14 Military leadership 13 Soldiers 13 Dictionaries 12 Terrorism 12 World war, 1939-1945 12