PANMUNJOM, NORTH KOREA - MAY 26: In this handout image provided by South Korean Presidential Blue House, South Korean President Moon Jae-in (L) shake hands with North Korean leader Kim Jong-un (R) before their meeting on May 26, 2018 in Panmunjom, North Korea. North and South Korean leaders held the surprise second summit after U.S. President Donald Trump cancelled the meeting with Kim Jong-un scheduled for June 12. Trump has since indicated that the meeting could take place a day after.  (Photo by South Korean Presidential Blue House via Getty Images)