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Page 7 of 17
Policy brief

Tried and tested: Why the CTBT must be preserved

President Trump’s recent statement about the US resumption of nuclear testing has heightened concerns over a renewed arms race and the erosion of the global norm against nuclear testing enshrined in the Comprehensive Nuclear-Test-Ban Treaty (CTBT). This new policy brief from the ELN’s Protecting the Nuclear Non-Proliferation Treaty project argues that the CTBT reinforces the NPT by bolstering the nuclear non-proliferation norm and constraining the development of new nuclear warhead types: sustaining it is a strategic imperative. States Parties to the NPT must work together to strengthen the CTBT’s credibility and relevance to international security and prioritise collective multilateral action over short-term security gains.

4 December 2025
NPTMultilateral Arms Control, Disarmament and Non-ProliferationNPT ProjectCTBTEUNATONPTNuclear SecurityNuclear WeaponsELN
Commentary

Stepping back from the brink: How the UK could help lead the world away from the nuclear precipice 

The world today stands closer to nuclear catastrophe than at any point since the end of the Cold War. Conflicts involving nuclear-armed states could all too easily escalate to a nuclear confrontation, as global arms control treaties collapse. Steve Barwick, Chair of the Nuclear Education Trust, calls for the UK, as the chair of the group of five ‘official’ nuclear weapon states in the run-up to the 2026 NPT Review Conference, to reject nuclear sharing and prioritise transparency, reinvigorate global nuclear diplomacy, adopt a no-first-use policy, and engage with the TPNW.

25 November 2025 | Steve Barwick
NPTMultilateral Arms Control, Disarmament and Non-ProliferationNPT ProjectArms ControlCTBTNATONuclear Arms ControlNuclear WeaponsUnited Kingdom
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
Commentary

The Russian New START initiative: How can Europeans respond to a poisonous offer?

Putin’s proposal to extend the nuclear weapons treaty for a year has been met with silence from most European leaders so far. ELN Senior Policy Fellow Julia Berghofer writes that there are legitimate concerns over the sincerity of Russia’s proposal, but the West should not let go of an opportunity to leverage Russian interests. While Europeans have only a limited role to play, they must still try their best to influence the process.

15 October 2025 | Julia Berghofer
Multilateral Arms Control, Disarmament and Non-ProliferationArms ControlEuropeNuclear Arms ControlNuclear SecurityNuclear WeaponsRussiaUnited StatesELNYGLN