The invitation was delivered by Kim's sister, Kim Jo Yong, during a Saturday meeting at Moon's presidential compound in Seoul a day after the opening ceremony for the Winter Olympics in South Korea. And few, if any, expect the Olympics-inspired détente to last after the world's athletes depart the peninsula.
The New Year began with signs of a lull in the nuclear crisis that's been brewing on the Korean peninsula.
Speaking on his way home from the Winter Olympics in South Korea, Mr Pence said there was "no daylight" between the two allies on the issue.
The two leaders however, did not discuss North Korea's invitation to Moon to visit Pyongyang, according to a senior administration official. South Korea's figure skating superstar and Olympic gold medalist Kim Yuna lit the Olympic cauldron.
Participants carry the Olympic flag during the opening ceremony of the Pyeongchang 2018 Winter Olympic Games.
The North's official media have reflected the positive tone, with the ruling party's mouthpiece Rodong Sinmun carrying seven pictures of the delegation's departure from Pyongyang and arrival in Incheon on its front page Saturday.
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That same year, Corporal Lewis Ewing was stationed at Chuncheon as a helicopter crew chief with the U.S. Army, responsible for maintaining the aircraft that sent supplies to troops on the ground and transported the wounded to hospitals.
Some North Korean experts believe tough United Nations sanctions that are cutting off most of the isolated North's sources of revenue have added pressure on Pyongyang to engage further with Seoul.
"You will inspire us by competing for the highest honour in the Olympic spirit of excellence, respect and fair play", said Bach. The president has repeatedly threatened to bomb North Korea and derisively refers to Kim as "Little Rocket Man". "And as these people and their lives have testified, it is a regime that imprisons, tortures and impoverishes its citizen".
After months of tensions, the athletes from the two countries marched under the same flag in the parade ceremony.
"The Koreans will think it's a mood kill", said Frank Jannuzi, an expert on East Asia at the Mansfield Foundation in Washington.
As she delivered the letter, Kim verbally stated her brother's "willingness to improve South-North Korea relations" and said he was willing to meet Moon "at the earliest date possible", the spokesman said. "The last thing I'm anxious about is a North Korean propaganda success".
Turns out the North Korean leader is actually an Australian named Howard.