The head of that South Korean delegation, National Security Adviser Chung Eui-yong, met with Chinese President Xi Jinping in Beijing on Monday and will head to Moscow on Tuesday. "They say, Oh, please talk to me, and so we go talk to them". In a September 2005 joint statement, Pyongyang agreed to abandon its nuclear weapons and nuclear programs, while the USA said it had no nuclear weapons on the Korean Peninsula and that it would not attack North Korea.
The relationship between the two countries is very close, building upon a military alliance that dates back to 1950, when the USA stepped in to defend the South against an invasion from the North - the Korean War. "We've not heard anything directly back from North Korea, although we expect to hear something directly from them".
Just down the road from the peace booth, there were reminders of the close and long standing relationship between South Korea and the U.S.as thousands of protesters marched through downtown in support of former South Korean President Park Geun-hye.
The South Korean officials who took Kim's invitation to Washington are visiting China and Japan this week to update their neighbours on the talks.
Kim also told the South Korean envoys that he wished to hold talks with US President Donald Trump. The survey was conducted on Friday, when Trump accepted Kim's meeting proposal, and has a margin of error of plus or minus 4.4 percentage points.
Amid the flurry of diplomatic activity, there has been no word from Pyongyang about the talks that the regime is said to have proposed. North Korean media continues to criticize the USA for imposing sanctions on the country, but it has toned down its anti-U.S. rhetoric. "I think it's time", Trump said.
International Crisis Group said that while regional observers were sceptical that Pyongyang would change it strategic course and give up its nuclear weapons, no country wanted to miss a diplomacy opportunity which, at a minimum, could lower tensions on the peninsula.
He said that, in delivering the invitation to Trump orally, it was possible that the South Korean envoys may not necessarily have accurately conveyed to the USA leader what Kim said, "let alone what he meant", without a written record of the invitation.More news: Retired judges to probe anti-Muslim riots in Sri Lanka
"We will continue to realise the goal of denuclearisation, uphold the peaceful unification of the peninsula, and solve problems through dialogue and consultation", he said.
"Don't count your summits until they hatch". -South Korean military exercises during that time. "Secretary of state had no idea - literally had no idea". Even in the best-case scenario, negotiations are likely to be protracted.
Mr Trump has spoken with both Mr Xi and Japanese prime minister Shinzo Abe since Thursday's shock announcement.
The lack of an official response from North Korea to a summit with the USA shows Pyongyang is taking a cautious approach to the meeting, South Korean officials said on Monday.
Chinoy said China had been "bystanders" in the recent thaw in relations between North and South Korea.
"They're actually concerned", he said.
And if they come to fruition, they could have some serious effects on the markets, specifically United States indices and the dollar yen.
A few odd developments have come out of North Korea this weekend...