Foreign relations -- Politics and government -- 19 Foreign economic relations -- 11 National security -- 10 History -- 8 Congresses -- 6 Security, International 6 more ... Economic integration 5 Relations -- 5 World politics -- 5 Congresses 4 Foreign relations 4 International relations 4 North Atlantic Treaty Organization 3 Defenses -- 2 Economic conditions -- 2 European cooperation 2 European economic community -- 2 Islam 2 Islam -- 2 Military assistance, American -- 2 Policy networks -- 2 Regionalism -- 2 Strategic aspects 2 21st century 1 Allied occupation -- 1 Arab-Israeli conflict 1 Armed Forces 1 Arms control -- 1 Balance of power 1 less ...