President Lee also held bilateral summits with the leaders of the United States, Japan, and People's Republic of China to discuss North Korean affairs. In the wake of the ROKS Cheonan sinking, a joint declaration was issued by the G-8 leaders condemning the North. President Lee succeeded in bringing the Cheonan incident to the forefront in the Chair's Statement for the Asia-Europe Meeting in 2010 at Brussels, drawing member nation support for the South Korean government's stance on North Korea's nuclear issue and stability in Northeast Asia. In addition, President Lee urged Japanese Prime Minister Kan Naoto to put his words on 15 August, Korea's Liberation Day into action. Regular reunions of the families separated by the Korean War drew attention as an international issue after being included in the Chair's Statement.