Congresses Congresses -- 7 National security -- 5 Congresses. -- 3 Politics and government -- 3 Strategic aspects -- 3 Foreign relations -- 2 more ... Sea-power -- 2 Congresse 1 Cpongresses 1 Defenses -- 1 Economic conditions 1 Economic conditions -- 1 Economic forecasting -- 1 Economic policy -- 1 Five Power Defenses -- 1 Forecasting -- 1 Foreign economic relations -- 1 Marine resources -- 1 Military assistance -- 1 Military relations -- 1 Naval strategy -- 1 Pacific Area cooperation -- 1 Philosophy, Oriental -- 1 Security, International -- 1 Social conditions -- 1 Social policy -- 1 Technology and state -- 1 less ...