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Backgrounder: Previous DPRK Nuclear Tests

The DPRK has conducted six nuclear tests, each of which took place within months of long-range rocket or satellite launches. In anticipation of a possible seventh nuclear test, information on the first six tests has been compiled in this backrounder.

June 17, 2022

How Human Biases and Decision Processes Affect Risk Reduction Outcomes

Chapter Seven from the Global Assessment Report on Disaster Risk Reduction 2022 published by the United Nations Office for Disaster Risk Reduction

June 09, 2022

Factors Related to Past DPRK Nuclear Tests

In light of recent analyses about a possible next nuclear weapon test by the DPRK, ONN has compiled data related to each of the six previous nuclear weapon tests of the DPRK, specifically the timing of the previous tests, nuclear test site preparations, launch vehicle development, environmental factors and the political context. These factors may assist in assessing when a next test might take place.

May 13, 2022

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Tianran Xu

September 08, 2021

Ballistic missile and rocket institutions in Taiwan, China

This report is the first in a series of reports on ballistic missile/space launch vehicle development in the Republic of Korea, Japan and Taiwan, China, with a focus on institutions that are capable of producing components that could be subject to the Missile Technology Control Regime (MTCR) or the ...

Katsuhisa Furukawa

August 17, 2021

Food Insecurity in the DPRK in 2021

The report analyses information available in the open source domain about the DPRK's food insecurity.

Veronika Bedenko

July 27, 2021

ONN Monitoring Report: Activities Continue at the Abandoned 50 MWe Reactor at Yongbyon

In the monitoring report on the 50 MWe Reactor at Yongbyon from 9 July 2021, ONN noted that the roof of one of the buildings adjacent to the main reactor hall had been removed

Matthew Frank

July 26, 2021

Continued Construction Activities at Yusang-ni Missile Base

The Yusang-ni Missile Base is one of the largest and most recently completed North Korean missile bases and reportedly hosts a number of ballistic missile systems. Recent imagery from June 2021 indicates that some relatively minor construction continues at the facility, with a number of old building...

Tianran Xu

July 26, 2021

New Constructions at the Chamjin Missile Factory

The Chamjin Missile Factory, also known as the Thaesong Machine Plant, is an important facility for ballistic missile production in the Democratic People's Republic of Korea (DPRK).

Tianran Xu

July 14, 2021

New Construction at the Tonghae Satellite Launching Ground

This report is a work product for the Korean Peninsula monitoring project, which aims to provide situation awareness about the Korean Peninsula. This particular report is about changes ONN detected from satellite images at North Korea's Tonghae Satellite Launching Ground.

Veronika Bedenko

July 09, 2021

ONN Monitoring Report: New Activity at Abandoned 50 MWe Reactor at Yongbyon

Analysis of satellite imagery from June 2021 revealed new activity at the abandoned 50 MWe reactor at Yongbyon, Democratic People's Republic of Korea.

Tianran Xu

June 26, 2021

Termination of the Revised ROK Missile Guidelines: Assessment of China's and DPRK's Reactions

During the State visit of the President of the Republic of Korea (ROK) Moon Jae-in to Washington, D.C. in May 2021, the United States agreed to terminate the 1979 Missile Guidelines.