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Tianran Xu

June 29, 2023

Size Estimates of DPRK's Nuclear Devices

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. ...

Using the 600 mm multiple rocket launcher round as reference, the face length of both Kim Jong Un and Hong Sung Mu have been measured for later use

June 23, 2023

Kseniia Pirnavskaia for TRT World: Why Are the World’s Nine Nuclear-Armed States Spending More on Their Arsenals?

ONN Research Consultant Kseniia Pirnavskaia was interviewed by TRT World's programme Strait Talk on the increase of nuclear-armed states' spending on their arsenals.

June 19, 2023

Broadening Perspectives on Nuclear Disarmament: ONN Participating at AMC Conference

On 14-15 June, Open Nuclear Network (ONN) participated in the second Alva Myrdal Centre for Nuclear Disarmament (AMC) cross-disciplinary conference under the theme ''Nuclear Disarmament at a Crossroads'' in Uppsala, Sweden.

June 16, 2023

ONN Statement on Evgeny Buzhinskiy’s Removal from Engagement Network

The One Earth Future Foundation is committed to preventing armed conflict and promoting stability. We expect our associates to uphold key principles of international humanitarian law, which protects civilians in wartime. In upholding this commitment and in light of the recent events, Open Nuclear Ne...

May 31, 2023

Sharing Expertise and Fostering Cooperation: ONN participating at INMM/ESARDA Annual Meeting

On 22-26 May, Open Nuclear Network (ONN) participated in the second Joint Annual Meeting organised by the International Nuclear Materials Management (INMM) and the European Safeguards Research and Development Association (ESARDA).

May 31, 2023

Rachel Minyoung Lee for Georgetown Journal of International Affairs: Pyongyang's Strategic Calculus and Future Trajectory

ONN's Regional Issues Manager and Senior Analyst Rachel Minyoung Lee wrote a piece on the increased military actions undertaken by North Korea and how these actions should be understood within the larger framework of its domestic and foreign policies.

May 27, 2023

ONN Director Andreas Persbo attends a VCDNP-CNS conference in Krems

On May 26-27, Open Nuclear Network’s (ONN) Director Andreas Persbo took part in an annual conference organised by the Vienna Center for Disarmament and Non-proliferation (VCDNP) in collaboration with the James Martin Center for Nonproliferation Studies (CNS).

May 25, 2023

Contributing to Gender Equality: ONN and OSF Join Forces for the Women of Mass Distinction Reception

On 24 May, ONN had the pleasure of co-sponsoring the "Women of Mass Distinction" (WMD) networking reception.

Jaewoo Shin

Veronika Bedenko

Pavel Podvig

May 24, 2023

Use of Satellite Imagery in Support of On-site Inspections Lessons From a Field Exercise

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...

0.5-meter Planet SkySat image. Image © 2023 Planet Labs Inc. All Rights Reserved. Reprinted by permission

May 15, 2023

ONN Director Andreas Persbo Participates in the 4th Session of the Group of Governmental Experts on Nuclear Disarmament Verification

On 15-19 May, Director of Open Nuclear Network (ONN) Andreas Persbo participated in the fourth and final session of the Group of Governmental Experts on Nuclear Disarmament Verification (GGE NDV) in Geneva, Switzerland. This session marked the conclusion of almost two years of intensive discussions ...

May 11, 2023

Rachel Minyoung Lee, Markus Garlauskas and Jonathan Corrado for War on the Rocks: How to Avoid a Bad Take on a Hard Target: Analyzing North Korea the Right Way

ONN's Regional Issues Manager and Senior Analyst Rachel Minyoung Lee's co-authored a piece offering suggestions in analysing the DPRK.

May 08, 2023

Rachel Minyoung Lee Interviewed by Al Jazeera: Meet N Korea's 'crown princess' and possible heir to Kim Jong Un

ONN's Regional Issues Manager and Senior Analyst Rachel Minyoung Lee commented on Kim Jong Un's daughter's public appearances and messages conveyed.

April 17, 2023

ONN Concludes its #MEETONN Social Media Campaign

In February, ONN launched a two-month social media video campaign called #MEETONN. The aim of the campaign is to introduce our team and provide an inside look at how we try to achieve the overarching goal of nuclear risk reduction through innovation, inclusion and dialogue using open source data.

April 17, 2023

Tianran Xu Interviewed by Taiwan Plus News: Analysis: How Good Are Taiwan's Air Defenses?

ONN analyst Tianran Xu told Taiwan Plus News that in a war scenario, Taiwan will try to preserve its forces as much as possible during the first waves of strikes, so that the surviving aircraft and air-defence systems could still keep the airspace contested.

Tianran Xu

April 14, 2023

The DPRK's First Solid-Propellant ICBM Launch

Strategic Delivery Vehicle Development Series

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.

April 10, 2023

"North Korea Cuts Phone Link With South, Slamming 'Traitors' " by Jon Herskovitz and Sangmi Cha for Bloomberg

ONN Regional Issues Manager and Senior Analyst Rachel Minyoung Lee commented on DPRK's failure to respond to regularly held calls on an inter-Korean liaison communications channel.

April 05, 2023

"After Years of Restraint, North Korean Propagandists Take Aim at US" by William Gallo for VOA

ONN Regional Issues Manager and Senior Analyst Rachel Minyoung Lee commented on DPRK's latest rhetoric and use of language.

April 03, 2023

Elin Bergner Joins University of Vienna Network of Non-Resident Fellows

University of Vienna welcomes Elin Bergner as a Non-Resident Fellow at the European Centre for North Korean Studies.

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