Speeches, addresses, etc 15 Courses -- 13 Closing ceremony 10 Farewells 8 Foreign relations -- 6 Study and teaching 5 Diplomacy -- 4 more ... Economic conditions 4 Foreign relations 4 Diplomatic training 3 International diplomats 3 Opening Ceremony 3 Politics and government 3 Crisis management 2 Foreign policy 2 Negotiation 2 Business enterprises -- 1 Civilization 1 Communication systems -- 1 Computer networks -- 1 Congresses 1 Defenses 1 Digital communications -- 1 Dinners and dining 1 Diplomat's spouses 1 Diplomatic -- 1 Diplomatic etiquette -- 1 Economic condition -- 1 Economic integration 1 Economic policy 1 less ...