Courses -- 17 Speeches, addresses, etc 17 Foreign relations -- 16 Closing ceremony 14 Communication 12 Study and teaching 12 Farewells 11 more ... Global economy 11 Economic conditions 9 Politics and government 9 History 8 Terrorism -- 7 Business communication 6 Diplomacy -- 6 Terrorism 6 Communication -- 5 Crisis management 5 Diplomatic training 5 Economic conditions -- 5 Etiquette 5 Foreign relations 5 International trade 5 Leadership 5 Telephone etiquette 5 Communication in management 4 Conflict management 4 Diplomacy 4 Human rights 4 Management 4 Negotiation 4 less ...