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Commentary

Nuclear testing: unwise, unnecessary, and unwelcome

The current debate around a possible resumption of nuclear testing introduces a new level of brinkmanship in an already fraught geopolitical climate. As the testing moratorium risks being weaponised for great-power competition, ELN Senior Policy Fellow Julia Berghofer writes that European states, including nuclear-armed ones, must speak with one voice and make clear that nuclear testing is unwise, unnecessary, and unwelcome.

20 November 2025 | Julia Berghofer
NPTMultilateral Arms Control, Disarmament and Non-ProliferationNPT ProjectArms ControlCTBTDeterrenceNPTNuclear Arms ControlNuclear WeaponsRisk ReductionUnited States
Commentary

Network reflections: Nuclear testing signals and European responses

Following recent signals between the US and Russia over the possibility of renewed nuclear testing, we asked members to reflect on what this could mean for the broader global non-proliferation and arms control regime.

6 November 2025 | Ahmet Üzümcü, Jana Baldus, Jan Hoekema and Sahil V. Shah
Network ReflectionsMultilateral Arms Control, Disarmament and Non-ProliferationCTBTNPTNuclear Arms ControlNuclear WeaponsELNYGLN
Policy brief

Focused Multilateralism: How China and Germany can better engage on arms control, disarmament and non-proliferation

Engaging China on multilateral arms control, disarmament and non-proliferation has become more urgent, but also more difficult. Even in times of increased competition between China, Russia, and the US, Europeans have agency and will need to up their level of ambition in pursuing their own interests in making multilateral instruments more resilient. ELN Policy & Research Director Oliver Meier and Michael Staack call for focused, substantive, and flexible dialogues between Europeans and Chinese.

18 March 2025 | Oliver Meier and Michael Staack
Multilateral Arms Control, Disarmament and Non-ProliferationArms ControlChinaCTBTEuropeNuclear Arms ControlNuclear WeaponsRisk ReductionELN
Group statement

Statement by the Euro-Atlantic Security Leadership Group (EASLG): Three essential steps for reversing the slide to nuclear war

Former and serving senior officials, military leaders, and experts from across the Euro-Atlantic region put forward three urgent steps for nuclear-armed states to take to build on the essential principle that a nuclear war cannot be won and must never be fought.

14 February 2025
Multilateral Arms Control, Disarmament and Non-ProliferationCTBTNuclear SecurityNuclear WeaponsRisk Reduction
Commentary

The CTBT: A success story and keystone for reinforcing the NPT regime ahead of the next 2026 NPT Review Conference

Despite not yet entering into force, the CTBT has seen some remarkable successes in establishing a global norm against nuclear testing and a robust verification system. However, rising geopolitical tensions underscore the urgent need for full ratification. Eleonora Neri of the Younger Generation Leaders Network (YGLN) argues for states to redouble efforts to universalise the Treaty and reinforce global non-proliferation commitments.

30 January 2025 | Eleonora Neri
NPTMultilateral Arms Control, Disarmament and Non-ProliferationNPT ProjectArms ControlCTBTDeterrenceInternational LawMissilesNATONPTNuclear Arms ControlNuclear DisarmamentNuclear SecurityNuclear WeaponsRisk ReductionSecurityWMDsYGLN
Policy brief

Stop the bleeding: How to protect existing NPT disarmament agreements and commitments

Steps to protect the Article 6 acquis on nuclear disarmament are a necessary condition for success of the 2026 NPT RevCon, but there is uncertainty under what political circumstances states parties will convene in 2026. As the nuclear disarmament acquis is currently threatened from many directions, this policy brief considers what steps states parties may take to protect the NPT under different scenarios.

16 December 2024
NPTMultilateral Arms Control, Disarmament and Non-ProliferationNPT ProjectCTBTNPTNPTProjectNuclear Arms ControlNuclear DisarmamentNuclear SecurityNuclear WeaponsELN