South Korea's President Moon Jae-in speaks during the UN Climate Change Conference COP26 at SECC on November 1, 2021 in Glasgow, United Kingdom. (Photo by Yves Herman - WPA Pool/Getty Images)
Kim Jong-un waves from his car after arriving by train at Dong Dang railway station near the border with China on February 26, 2019 in Lang Son, Vietnam (Photo by Linh Pham/Getty Images)
North Korea's leader Kim Jong Un before a meeting with US President Donald Trump on the south side of the Military Demarcation Line that divides North and South Korea, in the Joint Security Area (JSA) of Panmunjom in the Demilitarized zone (DMZ) on June 3
U.S. Vice President Joe Biden looks through binoculars toward North Korea during a visits to observation post Ouellette at the Demilitarized Zone (DMZ) on December 7, 2013 in Panmunjom, South Korea (Photo by Chung Sung-Jun/Getty Images)
North Korea's leader Kim Jong Un before a meeting with US President Donald Trump in the Demilitarized zone (DMZ) on June 3 (BRENDAN SMIALOWSKI/AFP via Getty Images).