SEOUL - Despite the Trump administration asserting there’s been ongoing progress in talks with North Korea over its commitment to denuclearize, it is unclear what has been achieved ahead of the U.S. announced summit between President Trump and Kim Jong Un.

Bruce Klinger, Senior Research Fellow for Northeast Asia at the Heritage Foundation, says “that while some speculate that behind the scenes there had been quiet successes between the two sides, in reality, that really hasn't been the case.”

A Complicated Path to Denuclearization as Trump-Kim Summit Nears

North Korea’s denuclearization process has been stalled for months with little signs of outward progress, despite a call by South Korean President Moon Jae-in for Washington and Pyongyang to meet again. That’s something that is likely to take place before the end of February, when U.S. President Donald Trump said he'd meet North Korean leader Kim Jong Un for a second summit.

A Complicated Path to Denuclearization as Trump-Kim Summit Nears

“A few days ago Vice President Pence said that [the U.S. is still waiting for North Korea to commit to denuclearization. That’s been consistent with the divergence between the U.S. and North Korean position, not only since last year's summit but for decades,” said Klinger.

A Complicated Path to Denuclearization as Trump-Kim Summit Nears

But, that may not be the case, says Rodger Baker, Vice President of Strategic Analysis for Stratfor.

“It seems that the North Koreans are the ones who have been driving the push for this second summit almost more so than the United States,” he said, referencing announcements in Kim Jong Un’s New Year's speech which “laid out that North Korea saw a need for some change in behavior of the United States or else they would restart their program.”

“[North Korea] reached out to China to make sure that everything was going okay there and that China had their back, and then they reached out to the United States,” Baker assessed.

However, Harry Kazianis, director for Defense Studies at the Center for the National Interest, told VOA that at this point both sides may have realized there needs to be concrete progress towards denuclearization.

Kazianis said the “trick” now is to construct an interim deal “where both sides can come across as being a winner.”

“That's a very hard thing to do at any sort of negotiation,” he said.

Trump met with North Korean nuclear envoy Kim Yong Chol for nearly two hours, saying the announcement of the location of the next summit would be made shortly and that Kim was looking forward to their meeting.

“We've made a lot of progress that has not been reported by the media but we have made a lot of progress as far as the new denuclearization is concerned,” he said.

Neither Trump nor the White House gave details about the talks.

When South Korean President Moon Jae-in met North Korean leader Kim Jong Un this past September in Pyongyang, “the North expressed its willingness to continue to take additional measures, such as the permanent dismantlement of the nuclear facilities in Yongbyon, as the United States takes corresponding measures in accordance with the spirit of the June 12 US-DPRK Joint Statement,” according to the joint declaration issued at the end of the summit.

Currently, what North Korea means by “corresponding measures” remains debatable among experts.

Kazianis suggests that one possible measure the United States could offer would be to make a formal peace declaration or begin the process to issue a peace treaty to formally end the 1950-1953 Korea War.

But Baker said that a peace declaration may not be sufficient.

“The United States has already made basically peace declarations or assertions of having no intent to attack North Korea, and that wasn’t enough,” said Baker.

Furthermore, Kazianis said, “The biggest thing that the North Koreans always talk about their propaganda media statements… is how afraid they are of America's nuclear assets.”

He suggested that if Washington were to scale the assets back, “I think the North Koreans would be really, really incentivized to do a lot.”

Both Kazianis and Baker added that Pyongyang is also looking for sanction relief.

Although Klinger said many underestimate the complexity involved with reducing or eliminating sanctions, noting the difference between sanctions imposed by the United Nations and those by the United States.

“The U.N. sanctions are,” he said, “is sort of behavior modification, and a lot of the sanctions are trade restrictions, either import or export. In a way, those are more negotiable.”