Journalists arrive in North Korea for dismantling of nuclear test site

A commemorative coin for the upcoming U.S. and North Korean meeting is seen at White House

The other attacked National Security Advisor John Bolton and his call for a Libya-model of denuclearization, saying that if the trying to force North Korea's hand in "unilateral" denuclearization, the country, "will...reconsider our proceeding to the D.P.R.K. -U.S. summit".

What we now could be witnessing is advisors to Kim Jong Un arguing for their leader to make the case for North Korea to retain some nuclear capability, at least until the North receives security assurances, peace treaty, economic development assistance and normalization of relations with the U.S. It appears that Kim Jong Un had made a strategic decision to dismantle his nuclear arsenal, in return for the myriad of economic and political deliverables he wants, which would then permit him to focus on rebuilding his economy and gaining global recognition as a normal sovereign state, attracting worldwide investment and other benefits from membership in the global community.

U.S. Vice President Mike Pence told Fox News on Monday, "There was some talk about the Libyan model last week, and you know, as the president made clear, this will only end like the Libyan model ended, if Kim Jong-un doesn't make a deal".

Trump surprised senior US officials when he accepted Kim's invitation for a summit back in March.

Supporters stress that sometimes Trump's ambitious efforts do pay off, as with the massive tax cut bill he signed into law late a year ago.

One poll conducted for television channel MBC shortly after the summit found that 89 percent of South Koreans thought the event had been a success; 78 percent even said they viewed North Korea's Kim as trustworthy.

It has said in previous, failed talks that it could consider giving up its arsenal if the United States provides security guarantees by removing its 28,500 troops from South Korea and withdraws its so-called nuclear umbrella of deterrence from South Korea and neighbouring Japan. They were not authorized to speak publicly.

Now, having staked much of his presidency on a rapprochement with Pyongyang, Moon comes to the White House with the goal of keeping U.S.

Driven by gut instinct, Trump rarely dives deep as he prepares to meet with foreign counterparts.

However, the improving diplomatic environment has hit a rocky patch, with North Korea threatening last week to pull out of a planned June 12 summit in Singapore between leader Kim Jong Un and U.S. President Donald Trump.

In the Panmunjom joint declaration, Moon and Kim agreed to pursue complete denuclearization of the Korean Peninsula.

Earlier this month, North Korea denounced USA demands for "unilateral nuclear abandonment" and cancelled at the last minute a high-level meeting with the South in protest over joint military drills between Seoul and Washington. Polls have shown majority approval for the plan to meet Kim, and many voters have expressed confidence in Trump's handling of the summit.

An expanded meeting involving other officials from both sides will be held later over lunch at the White House. No global verification was conducted because all of those countries are nuclear weapons states approved by the Nuclear Non-Proliferation Treaty (NPT).

Concrete gains for Trump would be slower to emerge.

One official said the priority of the talks in Singapore would be to reach a topline understanding with Kim, with details to be fleshed out later.

"After that, dialogue will continue until the end of time", the expert said. Such an agreement could provide Kim more assurances that his leadership would be secure.

Chairman of the Committee for the Peaceful Reunification of the Country (CPRC) Ri Son Gwon last week warned Seoul that no inter-Korean meetings would take place until pending issues were resolved.

Victor Cha, a professor at Georgetown University and former White House official, said the best outcome would be "good optics, good atmospherics, some broad statements on denuclearization and peace, and some immediate deliverable".