History 394 Military history, Modern 78 Politics and government 76 Foreign relations 70 World politics 66 Military art and science 53 United States 39 Military policy 37 History, Military 33 Biography 32 Armed Forces 29 War 27 World War, 1939-1945 22 Strategy 21 Arms race 19 International relations 19 Terrorism 19 Great Britain 18 Case studies 14 Cold War 14 Intelligence service 14 20th century 13 Congresses 13 Political aspects 13 Economic conditions 12 Military relations 12 Sea-power 12 National security 11 Naval art and science 11 Political activity 11