A North Korean delegation led by a political princess is heading home after a whirlwind three days in South Korea, where she sat among world leaders at the Olympics and tossed a diplomatic offer to the South aimed at ending seven decades of hostility.
In a historic move, South Korean President Moon Jae-in welcomed senior North Korean officials, including leader Kim Jong-un's sister Kim Yo-jong, to the presidential palace for a lunch meeting on Saturday.
Vice President Mike Pence said Saturday evening there is "no daylight" between the USA and South Korea, despite their different approaches to engagement with North Korea at the Pyeongchang Olympic Winter Games.
The younger Kim's trip to the South marks the first time that a member of the North's ruling dynasty has visited since the Korean war, which ended in an armistice in 1953.
Moon did not immediately accept the invitation. In it, Kim Jong Un highlighted several huge intercontinental ballistic missiles, which were successfully flight tested three times previous year and could reach deep into the US mainland when perfected.
"If there is a message to be conveyed to South Korea or the US, she is amply well positioned to convey it", he said.
The delegation, which includes Kim's sister, Kim Yo-jong, is in South Korea for the Winter Olympics.
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The North Korean delegation arrived in the South on Kim's private plane on Friday via Incheon worldwide airport to attend the opening ceremony of the Pyongchang Winter Olympics where Seoul and Pyongyang are represented by joint teams. Moon and Kim Yong Nam planned to return to the Games venue to watch the joint Korean women's ice hockey team - the first ever combined team at the Olympics - take on Switzerland, the Blue House said.
The meeting led to a series of reunions of families separated by the 1950-53 Korean War, as well as the launch of a joint factory park in the North's border town of Kaesong in 2004.
Kim Yo Jong has rapidly risen up the ladder since her brother inherited power from their father, and is now among his closest confidantes.
"There is no daylight between the United States, the Republic of Korea and Japan on the need to continue to isolate North Korea economically and diplomatically until they abandon their nuclear and ballistic missile programme", Pence told reporters during a flight to the United States following his visit to South Korea, where the Olympic games are being held.
After arriving in Seoul, the North Koreans attended a frosty opening ceremony at Pyeongchang's Olympic Stadium, taking their place among some of the world's top officials, including US Vice President Mike Pence and Japanese Prime Minister Shinzo Abe, who seemed to go out of their way to not acknowledge the North Koreans, despite sitting just a few meters away.
The Trump administration is still wary of any kind of engagement with the North.
"We should firmly keep in mind that any talks where denuclearisation is not a precondition only buy North Korea more time to complete its nuclear capabilities while they fool us with their peace offensive façade", said Chang Je-won, spokesman for the Liberty Korea Party.