During celebrations marking the 75th birthday of its ruling party, Workers' Party of Korea, in Pyongyang on Oct. 10, 2020, North Korea paraded a variety of weapons systems, including two missiles that were disclosed for the first time to a foreign audience. One is what appeared to be an intercontinental ballistic missile that is larger than any of the North's known ICBMs, and the other would likely be an upgraded version of a missile that can be fired from submarines.
While some experts say they could be mock-ups of missiles under development, their disclosures suggest North Korea has been continuously pushing to boost its weapons capability amid a stalemate in nuclear diplomacy with the United States.
Attempts to use the threat of nuclear warfare to achieve diplomatic goals.
Heightened tensions in 2017 were followed by two years of nuclear diplomacy between Pyongyang and Washington, including three meetings between Kim and Trump, but little tangible progress was made.