Politics and government -- 27 Foreign relations -- 21 Economic integration 19 History -- 14 Defenses 11 Foreign economic relations -- 11 National security -- 11 more ... Military policy 10 Relations -- 10 World politics -- 10 Foreign relations 7 History 7 Security, International 7 International agencies -- 6 Periodicals 6 Periodicals -- 6 Economic conditions 5 Economic conditions -- 5 Regionalism -- 5 Armed Forces 4 Politics and government 4 Arms control -- 3 Congresses 3 Globalization 3 Intellectual life -- 3 Islam -- 3 Muslims -- 3 Social policy 3 Colonies -- 2 Congresses -- 2 less ...