The Hanoi summit was the second face-to-face meeting between U.S. President Donald Trump and North Korean leader Kim Jong Un, held on 27–28 February 2019 in Hanoi, Vietnam. It followed the June 2018 Singapore summit, which had produced a vague joint statement committing the DPRK to work toward "complete denuclearization of the Korean Peninsula" without defining terms, timelines, or verification.
In Hanoi, negotiators sought to translate that ambiguity into a concrete deal. According to post-summit briefings by both sides, the core dispute centered on the Yongbyon nuclear complex and the scope of sanctions relief. Kim reportedly offered to dismantle Yongbyon in exchange for the lifting of five UN Security Council sanctions resolutions adopted between 2016 and 2017 — measures that cover the bulk of the DPRK's civilian economy. The U.S. side, led by Trump and Secretary of State Mike Pompeo, judged that Yongbyon alone was insufficient because North Korea operates additional undeclared enrichment facilities (notably suspected sites such as Kangson), and pressed for a broader "big deal" covering all weapons of mass destruction programs.
The talks collapsed without a joint statement; a planned signing ceremony and working lunch were cancelled. Trump walked out, telling reporters that "sometimes you have to walk." North Korean Foreign Minister Ri Yong Ho held a rare late-night press conference disputing the U.S. characterization, insisting Pyongyang had requested only partial sanctions relief.
The Hanoi failure marked a turning point. Working-level talks in Stockholm in October 2019 also broke down. Kim subsequently announced an end to his self-imposed moratorium on long-range testing, and the DPRK resumed ICBM launches in 2022. Analysts often cite Hanoi as a case study in the risks of top-down summit diplomacy without prior working-level agreement on definitions, sequencing, and verification. It also illustrated divergent understandings of "denuclearization" between Washington and Pyongyang that had been papered over in Singapore.
Example
At the Hanoi summit in February 2019, Donald Trump walked out after Kim Jong Un demanded broad sanctions relief in exchange for dismantling only the Yongbyon nuclear complex.
Frequently asked questions
The U.S. and DPRK disagreed on the trade: Kim offered to dismantle the Yongbyon complex in exchange for lifting major UN sanctions from 2016–2017, while Washington wanted broader dismantlement covering undeclared enrichment sites and all WMD programs.
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