Stephen Mathias, UN assistant secretary-general for legal affairs, addresses the opening of the 2015 Summer Programme of Xiamen Academy of International Law in Xiamen, East China's Fujian, July 13, 2015. Twenty-two senior legal officers from the member countries of the Asian-African Legal Consultative Organization (AALCO) took part in the programme which will last from July 13 to 31. Another six distinguished experts on international laws were invited to give lectures. (Xinhua/Zhang Guojun)