Publications and Analyses

In an attempt to more comprehensively assess nuclear risks on and around the Korean Peninsula, this monthly Report examines the DPRK’s and the ROK’s nuclear and military spheres, as well as activities and policy decisions across main domestic and foreign policy spheres that could impact nuclear risk...

In an attempt to more comprehensively assess nuclear risks on and around the Korean Peninsula, the Report examines the DPRK’s and the ROK’s nuclear and military spheres, as well as activities and policy decisions across main domestic and foreign policy spheres that could impact nuclear risks.

To celebrate the 70th "Victory Day" (Korean War armistice) anniversary, the Democratic People’s Republic of Korea (DPRK) staged a military parade on 27 July 2023, which was centered around the DPRK’s nuclear forces.

The Menzingen Verification Experiment conducted on 8 March 2023, was organized by UNIDIR in partnership with the Swiss Armed Forces, Spiez Laboratory, Princeton University’s Program on Science and Global Security, and ONN. This report describes the procedure and the key results of the experiment.

In an attempt to more comprehensively assess nuclear risks on and around the Korean Peninsula, this monthly Report examines the DPRK’s and the ROK’s nuclear and military spheres, as well as activities and policy decisions across main domestic and foreign policy spheres that could impact nuclear risk...

The DPRK nuclear warheads showcased before 2023 have a maximum diameter of around 600 mm and were likely intended to be delivered by ballistic missiles. The Hwasan-31 nuclear warhead, newly revealed in late March 2023, has a reduced diameter of around 460 mm, suggesting advances in miniaturization. ...

In March 2023, the United Nations Institute of Disarmament Research (UNIDIR) conducted a field experiment, simulating an on-site inspection to verify the absence of nuclear warheads at a military site. As part of the experiment, UNIDIR, in collaboration with Open Nuclear Network (ONN), tested the ap...

On 13 April 2023, the Democratic People's Republic of Korea (DPRK) conducted its first flight test of a solid-propellant intercontinental ballistic missile (ICBM), the Hwasong-18.