Photo taken on Aug. 29, 2018 shows the general view of the Security Council's debate on the Maintenance of International Peace and Security: Mediation and the Peaceful Resolution of Conflicts, at the UN headquarters in New York. UN Secretary-General Antonio Guterres said Wednesday that innovative thinking on mediation in resolving conflicts is a necessity. (Xinhua/Li Muzi)

The Archbishop of Canterbury Justin Welby speaks at the Security Council's debate on the Maintenance of International Peace and Security: Mediation and the Peaceful Resolution of Conflicts, at the UN headquarters in New York, Aug. 29, 2018. Justin Welby on Wednesday stressed the importance of reconciliation in peacemaking. (Xinhua/Li Muzi)

Lord Ahmad of Wimbledon (front, L), Minister of State for the Commonwealth and the United Nations of the United Kingdom, chairs the Security Council's debate on the Maintenance of International Peace and Security: Mediation and the Peaceful Resolution of Conflicts, at the UN headquarters in New York. UN Secretary-General Antonio Guterres said Wednesday that innovative thinking on mediation in resolving conflicts is a necessity. (Xinhua/Li Muzi)