History 42 Politics and government 38 Foreign relations 28 Communism 19 Arms race 6 Military policy 6 World War, 1939-1945 6 Democracy 5 Economic conditions 5 Terrorism 5 Biography 4 Congresses 4 Nationalism 4 Revolutions 4 Armed Forces 3 China 3 Communist parties 3 Economic policy 3 Intelligence service 3 National security 3 Nuclear arms control 3 Nuclear weapons 3 Political activity 3 Prevention 3 Public opinion 3 Relations 3 Security, International 3 Strategy 3 United States 3 Balance of power 2