Political aspects Ethnic relations -- 10 Globalization -- 9 Foreign relations -- 8 International relations 7 World politics -- 7 Economic aspects 6 more ... Petroleum industry and trade -- 5 Social aspects 5 International economic relations 4 Environmental aspects 3 Ethnic relations 3 Ethnicity 3 International economic relations -- 3 International relations -- 3 Politics and government 3 Terrorism -- 3 Comparative government 2 Computer network resources 2 Conflict management -- 2 Democracy 2 Economic assistance -- 2 Energy policy 2 Energy policy -- 2 Environmental policy 2 Foreign public opinion 2 Globalization 2 History -- 2 Human territoriality -- 2 Information technology -- 2 less ...