Over the next few months, the North Koreans started communicating more with their neighbors, as Supreme Leader Kim Jong-un secretly met with Chinese paramount leader Xi Jinping in March and then Moon Jae-in in an historic inter-Korean summit in April, and around the same time, a meeting between Trump and Kim was also proposed. On May 10, Pence accompanied Trump to Andrews Air Force Base as three American citizens were released by North Korea, and in an early morning interview with ABC's Jonathan Karl, he said seeing the men back on American soil "was really one of the greatest joys of my life". Talks broke down later that month following comments made by Pence and Trump, comparing the situation to events in Libya seven years previous, despite their voluntary disarmament of nuclear weapons in 2003. North Korean vice foreign minister Choe Son-hui called Pence's remarks "ignorant and stupid". On May 24, Trump abruptly called off the summit with Pence in attendance, only for him to change his mind a day later, later announcing that it would still be scheduled to take place on June 12 in Singapore.