History 273 World War, 1939-1945 144 Biography 130 Foreign relations 104 Politics and government 87 Great Britain 69 Military policy 46 World War, 1914-1918 38 History, Military 37 Army 28 Campaigns 28 Management 26 Secret service 26 Regimental histories 23 Armed Forces 22 Colonies 22 Law and legislation 21 Law 20 Prime Ministers 20 Aerial operations, British 18 Generals 18 Intelligence service 18 History, Naval 17 Personal narratives, British 17 20th century 14 Military leadership 14 Soldiers 13 Special forces (Military science) 13 Terrorism 12 World war, 1939-1945 12