Korean War and guarantee the security of Kim's regime.
Last year, the North made one of the biggest breakthroughs in its missile and nuclear weapons programs - which it says it needs to defend against the risk of a US invasion - when it announced that it had "completed" its state nuclear program after testing a missile capable of striking most, if not all, of the continental U.S. In Trump's words: "They have to de-nuke".
After more than 10 days at the DMZ, the US diplomatic team, led by South Korean Ambassador Sung Kim, left talks with its North Korean counterparts last week without a pre-baked statement or agreed-upon path forward beyond the summit, according to administration officials.
The President would be wise not to take the North Koreans lightly, even though he is convinced he has superior dealmaking skills well beyond those of his predecessors that will help him size up Kim in an instant. North Korea does not have a problem with coming to an agreement.
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Dismantling a secret nuclear arsenal built up over decades would take several years and be extremely hard to check, they say. -North Korean leaders' meeting.
The commemorative coin issued ahead of the US-North Korea Summit.
It will be the first ever meeting between a sitting US President and North Korean leader. Bear in mind, both Pyongyang and Washington have threatened to walk out of the talks in the past few weeks. The conflict ended in an armistice that sealed the division of the peninsula.
But Trump said: "We could absolutely sign an agreement and we're looking at it", adding: "Sounds a little bit unusual, but that's probably the easy part".
Reinforcing the new stance perhaps was also the absence of President Trump's top officials at the Oval Office meeting on June 1 with Pyongyang's principal envoy and nuclear negotiator. But any request for the USA to withdraw its 28,000 troops from South Korean bases would likely be rejected.
North Korea is estimated to have up to 120,000 political prisoners in its sprawling gulag system.
Ahead of his arrival, Trump acknowledged he is heading into "unknown territory" for the meeting Tuesday.
The summit between Donald Trump and Kim Jong Un will be among the most improbable diplomatic encounters in history, featuring principals who could not be more different - but who also share some surprising similarities.
"The underlying driver is a transformational process of Kim Jong-un leading North Korea into a new place in the region and the world", said John Delury, a professor of Chinese studies at Yonsei University in Seoul.
That may be even more important to Trump in the wake of the disastrous G-7 summit.
In the month starting February 28 Trump sacked or lost the services of his White House communications director Hope Hicks, chief economic adviser Gary Cohn, national security adviser HR McMaster, Secretary of State Rex Tillerson and veterans affairs secretary David Shulkin.
He has said the talks would be more about starting a relationship with Kim for a negotiating process that would take more than one summit.
While North Korea spoke of establishing a new "permanent peace-keeping mechanism" and its state-run news agency hailed a "new era" in relations with the US, Trump tweeted about how pleased he was to be in Singapore.