On the afternoon of November 14th, 2019, Professor Song Guoyou cordially greeted the delegation led by Mr. Dan Smith, Director of Stockholm International Peace Research Institute, probing into issues on Sino-U.S. relations, climate change policies and the security situation in Northeast Asia, etc. Professor Zheng Jiyong at the Institute of International Studies and Professor Bo Yan at the School of International Relations and Public Affairs, Fudan University engaged in the interactive dialogue.