In the afternoon of May 31th, at the invitation from Guangdong Research Institute for International Strategies, Prof.Shelton Williams attended the symposium on Sino-US relation and discussed related issues with faculties from GRIIS and post-graduates of Center for European Studies. Prof. Yang Shaogang, exective chief editor of “Studies on Strategic Decisions” and Prof. Liu Jisen, secretary general of GRIIS attended the symposium. The symposium was hosted by Prof. Tang Xiaosong, director of US Studies Center.