Foreign relations 27 Politics and government 11 History 9 Military policy 8 Economic policy 6 Foreign economic relations 6 Addresses, essays, lectures 5 Congresses 5 Economic conditions 5 Government policy 5 Armed Forces 4 Arms control 4 Agriculture and state 3 International economic relations 3 National security 3 Nuclear nonproliferation 3 Strategic aspects 3 World politics 3 Agriculture 2 Communism 2 Conflict management 2 Economic assistance 2 Economic development 2 Escalation (Military science) 2 International agencies 2 Munitions 2 Peasantry 2 Petroleum industry and trade 2 Revolutions 2 Rural development 2