CSIS has begun publishing a 3-part series concerning the Yongdok-tong nuclear high-explosive facility.
Only part 1 has been released so far, but it promises to shine some light on information that was kept secret so far.
- The Yongdok-tong Nuclear High Explosive Test Facility is the only known operating facility in the country for testing designs and components for high-explosive detonation of nuclear weapons. This is the most comprehensive report of this secret facility currently available at the unclassified level.
The CSIS speculates that the public revelation of the activities performed on the site could spur North Korea to change its current testing behavior, implying that open-air explosions of nuclear detonators are being performed there regularly.
- The publication of this report may result in a North Korean response that could complicate the future identification of specific elements and activities at the Yongdok-tong facility. Such responses could include suspension or termination of open-air, high-explosive nuclear detonator testing, or the emergence of such testing at other locations within the nation to conceal or deceive observers about North Korea’s nuclear weapons development status and infrastructure. [1]
For context, high-explosive nuclear detonators are conventional chemical explosions designed to compress the fissile material and initiate the nuclear explosion process.
It's plausible that the 2 remaining parts of the report could give further hints at how much nuclear research activity is ongoing at the site.
[1] Beyond Parallel - Yongdok-tong Nuclear High Explosive Test Facility: Part 1
Why do you think you're right?
KJU might have just started to draw a second demarcation line with SK, south of the original NLL.
At present, this only represents a purely rhetorical escalation, but it might nonetheless increase the chance of patrolling incidents happening in the proximity of the border.
[1] Kim Jong Un’s cryptic reference to new maritime border raises naval stakes
[2] Kim Jong-un unveils destroyer, signals shift in maritime border concept
Why might you be wrong?
This bit of the news was only reported by a couple of media outlets that focus on North Korea, so it might not be as significant a change in policy as it is suggested.