SEOUL -- South Korea and the Democratic People' s Republic of Korea (DPRK) agreed to hold a joint event in Seoul next month to celebrate the 15th anniversary of the historic June15 Declaration, issued after then S. Korean President Kim Dae-jung and late DPRK leader Kim Jong-il met in Pyongyang in 2000, Yonhap News Agency reported citing the preparatory committee of the S. Korean side for the event. Enditem