Congresses 8 Foreign relations -- 7 Economic policy 5 Politics and government 5 Culture -- 4 Foreign economic relations -- 4 Commerce -- 3 more ... Congresses -- 3 Democracy -- 3 Economic conditions 3 Economic integration 3 National security -- 3 Politics and Government -- 3 Commerce 2 Economic policy -- 2 Environmental conditions 2 Environmental protection -- 2 Foreign relations 2 History -- 2 Regional assocation and organizations -- 2 Business planning -- 1 Cambodian-Vietnamese conflict -- 1 Capital -- 1 Case studies -- 1 Competition, International -- 1 Congress -- 1 Conservation of natural resources -- 1 Counterinsurgency -- 1 Cultural policy 1 Defenses 1 less ...