High-ranking officials from both countries have met several times in advance of Tuesday's summit to prepare for the historic talks.
"The worst case scenario would be if President Trump came into the summit and presented an ultimatum demanding complete and verifiable denuclearization", said James Trottier, a former Canadian diplomat who led several missions to Pyongyang.
Apart from breaking a year-long deadlock on nuclear negotiations, Pyongyang also eyes an overall improvement of the US-North Korea bilateral ties and "other issues of mutual concern as required by the changed era", KCNA reported, adding that the delegations will share "wide-ranging and profound views on the issue of establishing new DPRK-US relations".
Pyongyang has said it is willing to deal away its entire nuclear arsenal if the United States provides it with reliable security assurances and other benefits.
Pompeo hinted that Trump was unlikely to waver on this key demand, tweeting earlier on Monday that the USA remained "committed" to CVID.
You can imagine the drumming of fingers in anterooms as officials wait to be told if there will be peace in our time, or whether it's all fallen apart and we're heading for the airport.
Kim and President Trump arrived in Singapore on Sunday ahead of Tuesday's historic summit. "You don't know. This has not been done before at this level".
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The meeting lasted more than two hours and took place at the Ritz Carlton.
Asked by a reporter how he felt about the summit, Trump said: "Very good".
Kim had arrived hours earlier in a plane loaned by China, which for decades has been North Korea's only major ally.
The foreign minister of Singapore tweeted out a picture of the cake presented to Trump at the luncheon today in Singapore.
Certainly security will soon ramp up but for now the only real hint of what is about to happen are the signs at the front of the summit venue - the uber-luxurious Capella Hotel on Sentosa island - saying "police check, comply with police orders". Again accusing the longtime US ally of unfair trade practices, he added: "Then Justin acts hurt when called out!" Getting Pyongyang to swear off its nuclear ambitions is certainly a central prerequisite and condition of North Korea's impending return to the world order, never mind the summit.
It "would instead lay out practical steps with requisite commitments from North Korea that demonstrate that it understands, accepts and is committed to achieving denuclearisation as the United States defines it", said Enos, who is also in Singapore to watch the proceedings.
Brad Adams, Asia director at Human Rights Watch, said it was imperative that Trump bring up rights issues with Kim.
Sung Kim, a former U.S. ambassador to South Korea who has been leading the USA in talks with North Korean Vice-Foreign Minister Choe Son Hui since last month, is said to be continuing the discussions with his counterpart in Singapore.
A US official, speaking on condition of anonymity, said Monday's meeting appeared aimed at making 11th-hour progress ahead of the summit since Sung Kim's earlier talks did little to narrow a gap between the two sides on the definition of denuclearisation or win agreement on tangible commitments from Pyongyang toward dismantling its nuclear arsenal.
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