History 279 World War, 1939-1945 148 Biography 130 Foreign relations 105 Politics and government 89 Great Britain 69 Military policy 49 World War, 1914-1918 39 History, Military 37 Campaigns 30 Army 29 Management 26 Secret service 26 Colonies 23 Regimental histories 23 Armed Forces 22 Law 21 Law and legislation 21 Prime Ministers 20 Aerial operations, British 19 Intelligence service 19 Generals 18 History, Naval 17 Personal narratives, British 17 20th century 14 Military leadership 14 Soldiers 13 Special forces (Military science) 13 Dictionaries 12 Terrorism 12