Foreign relations -- 400 Politics and government -- 106 History -- 77 Foreign economic relations -- 61 Relations -- 61 Military policy 51 National security -- 51 more ... Politics and government 36 World politics -- 32 Economic conditions -- 31 Military relations -- 29 Terrorism -- 29 Foreign relations 21 Government policy -- 21 Political aspects -- 21 Presidents -- 21 Economic policy -- 20 Congresses -- 19 Biography -- 18 Commerce -- 18 History 18 Public opinion -- 18 Cold War 17 China 15 Democracy -- 15 Commercial policy 14 Defenses 14 Nuclear weapons -- 14 Race relations 14 Social conditions -- 14 less ...