Politics and government -- 26 Foreign relations -- 21 Economic integration 18 Relations -- 12 Defenses 11 Foreign economic relations -- 11 History -- 11 more ... National security -- 11 World politics -- 11 Military policy 10 Periodicals 9 Economic conditions -- 7 Foreign relations 7 International agencies -- 7 Security, International 7 History 6 Periodicals -- 6 Armed Forces 4 Regionalism -- 4 Arms control -- 3 Congresses 3 Economic conditions 3 Globalization 3 Social conditions -- 3 Social policy 3 Colonies -- 2 Congresses -- 2 Defenses -- 2 Economic policy 2 European economic community -- 2 less ...