What is the fine-grained topic of the following text: He will also take part in the ministerial meeting on OSCE peacekeeping operations, the high-level meeting of the Group of Friends of the Alliance of Civilizations, the ministerial working lunch of the Central European Initiative, and the UN General Assembly high-level debate on maintenance of international peace and security on 1-3 October. Only return the topic.
Participation in International Diplomatic Meetings and Peacekeeping Operations