Foreign relations -- 33 Economic integration 20 Politics and government -- 17 Foreign economic relations -- 11 Politics and government 10 National security -- 9 Defenses 8 more ... History -- 8 Relations -- 7 Congresses 6 History 6 International relations 6 Security, International 6 World politics -- 5 Congresses -- 4 Economic conditions -- 4 European Union 4 Military policy 4 North Atlantic Treaty Organization 4 Economic policy -- 3 Europe 1992 3 Islam -- 3 Military relations -- 3 Arms control -- 2 Boundaries 2 Case studies 2 Civilization -- 2 Commerce -- 2 Comparative government 2 Competition, International 2 less ...