Home North Korean leader Kim Jong-un (left) is welcomed by Singapore’s Foreign Minister Vivian Balakrishnan (2nd from Right) at Changi Airport in Singapore on June 10, 2018 in Singapore, ahead of the historic meeting between U.S. President Donald Trump and North Korean leader Kim Jong-un.<br>(Photo by Ministry of Communications and Information Singapore/via Getty Images) North Korean leader Kim Jong-un (left) is welcomed by Singapore's Foreign Minister Vivian Balakrishnan (2nd from Right) at Changi Airport in Singapore on June 10, 2018 in Singapore, ahead of the historic meeting between U.S. President Donald Trump and North Korean leader Kim Jong-un.<br>(Photo by Ministry of Communications and Information Singapore/via Getty Images)

North Korean leader Kim Jong-un (left) is welcomed by Singapore’s Foreign Minister Vivian Balakrishnan (2nd from Right) at Changi Airport in Singapore on June 10, 2018 in Singapore, ahead of the historic meeting between U.S. President Donald Trump and North Korean leader Kim Jong-un.
(Photo by Ministry of Communications and Information Singapore/via Getty Images)

U.S. President Donald Trump (L) blows out a candle on a birthday cake given him by Singapore’s Prime Minister Lee Hsien Loong (not pictured) on June 11, 2018 in Singapore, ahead of the historic meeting between U.S. President Donald Trump and North Korean leader Kim Jong-un.<br>(Photo by Ministry of Communications and Information Singapore/via Getty Images)