The Peace House, a South Korean building at the border village of Panmunjom in the demilitarized zone (DMZ), is seen in this picture taken on April 18, 2018. The summit between South Korean President Moon Jae-in and Kim Jong Un, top leader of the Democratic People's Republic of Korea (DPRK), is scheduled for April 27 at the Peace House. (Xinhua/Wang Jingqiang)