Foreign relations 4 International relations 3 National security -- 3 Politics and government 3 International relations -- 2 Strategic aspects 2 Congresses -- 1 more ... Economic conditions 1 Environmental aspects 1 Environmental monitoring 1 Executive advisory bodies -- 1 Foreign economic relations 1 Foreign relations -- 1 International status 1 Military policy 1 Periodicals 1 Politics and government -- 1 Power-plant -- 1 Psychological aspects 1 less ...