International relations 33 World politics -- 32 History 30 Foreign relations -- 29 Politics and government 23 Congresses 20 Political science 20 more ... Politics and government -- 20 Communism 16 International economic relations 16 Addresses, essays, lectures 15 International law 15 Economic development 14 Military policy 13 Foreign relations 12 Economic conditions 11 Economics 11 Economic policy 10 Commercial policy 9 Democracy 9 Diplomacy 9 Economics -- 9 Political science -- 9 Communism -- 8 International organization 8 Nuclear warfare 8 Commerce 7 International law -- 7 Law and legislation 7 Public administration 7 less ...