National security -- Congresses -- 8 Congresses 6 Foreign relations -- 5 Politics and government -- 5 Politics and government 3 Strategic aspects 3 more ... Defenses 2 Economic conditions 2 Economic conditions -- 2 International cooperation 2 International relations 2 Air forces -- 1 Air power -- 1 Arms transfers -- 1 Balance of power 1 Congresses. -- 1 Dictionaries 1 Dictionaries -- 1 Maritime resources -- 1 Military policy 1 Pacific Area cooperation 1 Pacific Area cooperation -- 1 Pacific area 1 Prevention -- 1 Regionalism -- 1 Relations -- 1 Sea-power -- 1 Security, International -- 1 Strategic aspects -- 1 less ...