History 29 Foreign relations 17 World War, 1939-1945 11 Great Britain 9 Military policy 9 Politics and government 8 Biography 6 Colonies 6 History, Military 6 Secret service 5 Army 4 Military art and science 4 World war, 1939-1945 4 20th century 3 Generals 3 Military 3 Nuclear weapons 3 World War, 1914-1918 3 19th century 2 Armed Forces 2 Campaigns 2 Costs 2 Cryptography 2 Defenses 2 Diaries 2 Economic aspects 2 Foreign Relations 2 History, military 2 Intelligence officers 2 Management 2