Kazuko Mori, senior researcher of Sino-Japanese relations and professor of Waseda University, and Akio Watanabe, Vice President of Research Institute for Peace and Security, Japan, visited SIIS and talked with SIIS President Yang Jiemian, Director Yu Xintian and Deputy Director Wu Ji’nan of Academic Committee, Direcror Li Xiushi, Deputy Director Lian Degui and research fellow Chen Youjun of Center for Japanese Studies, and Director Chen Hongbin of Institute for Data Processing and Studies about the Sino-Japanese relations and relations among East Asian countries during the time of Hatoyama Yukio administration.