Experts suggest the security guarantee would need to be backed by a peace treaty ending the 1953 Korean War.
US summit preparations are moving forward, despite Pyongyang's threat to scrap June's Singapore meeting.
Analysts offer mixed assessments of North Korea's announcement; White House official suggests it did not surprise administration.
Analysts: Mike Pompeo’s meeting with Kim Jong Un increased the likelihood that a summit will take place between Washington and Pyongyang.
Kim Jong Un’s vision of denuclearization might pose a conflict with the U.S. expectation of how to denuclearize the North, experts say.
With US-North Korea summit approaching, Donald Trump and Moon Jae-in need to coordinate their approaches toward the North to avoid disappointments, according to experts.
Kim Jong Un is employing a sophisticated sports diplomacy strategy to counter Trump’s pressure campaign, analysts say; his father tried a similar move with basketball.