Deterrence and Proliferation
The conflicts in Europe, Asia and the Middle East demonstrate a return of nuclear power to the balance of power. Arsenals are being modernized and expanded, while arms control is collapsing. This research program aims to analyze these phenomena.
Read more
Research Fellow and Head of the Deterrence and Proliferation program, Security Studies Center, Ifri
Titre Bloc Axe
Flagship activities
See all our interventions
Titre Axe de recherche
Nuclear and Strategy Network - New Generation
The Nuclear and Strategy Network – New Generation was created in September 2015. This network is intended for students (Master 2 level, doctoral students, doctors) and young professionals (diplomats, engineers, journalists, etc.) interested in deepening their knowledge on military nuclear issues, in particular deterrence and non-proliferation.
The Network is administered by the Foundation for Strategic Research (FRS) and the French Institute of International Relations (Ifri), with the support of the French government.
Publications
See all our interventionsFlagship Publications
Publications
Mind the Deterrence Gap: Assessing Europe’s Nuclear Options
Europe must urgently confront a new nuclear reality. In recent years, Russia’s nuclear-backed revisionism has reintroduced nuclear coercion and the threat of nuclear escalation to the continent, underscoring the importance of credible nuclear deterrence. At the same time, Europe’s traditional reliance on US extended nuclear deterrence appears politically more fragile than at any point since the Cold War. Together, these developments require Europeans to think about their nuclear options.
Saudi Arabia’s Nuclear Temptations. Lessons Learned from Regional Instability
Saudi Arabia’s integration in the international arena and regional stability, notably through reducing its dependence on fossil energies, are crucial elements for the success of the Kingdom’s Vision 2030, the Crown Prince’s top priority. However, Mohammed bin Salman’s declarations in 2018 and 2021, indicating that “if Iran develops a nuclear bomb, we will follow suit as soon as possible”, combined with the recent strikes on key Iranian nuclear facilities, do not bode well for the future of the Kingdom, the region and the non-proliferation regime at large.
How should Britain and France cooperate to realise the Northwood Declaration?
During his state visit to the United Kingdom (UK) last week, Emmanuel Macron, President of France, signed a joint declaration with Sir Keir Starmer, Prime Minister, on nuclear cooperation between Britain and France. The Northwood Declaration highlights that while both countries’ nuclear arsenals remain sovereign, cooperation on nuclear deterrence can ‘contribute significantly’ to the security of the North Atlantic Treaty Organisation (NATO) and the Euro-Atlantic region.
The Evolving Role of Nuclear Rhetoric in Iran’s Strategic Calculus
How has the Iranian strategic discourse about nuclear weapons and deterrence evolved?
A Fragile Consensus? The Pressure on the Norm Against Nuclear Testing
Apart from North Korea, no state has conducted explosive nuclear tests in the 21st century, reflecting the emergence of a strong international norm against such testing.
Taking the Pulse: Can Europeans Build Their Independent Extended Nuclear Deterrent?
Confronted with a U.S. disengagement and the Russian threat, Europeans are reconsidering their stance on nuclear deterrence. Given the capabilities of the French and British arsenals, can Europe develop an independent nuclear deterrent?
Towards a European Nuclear Deterrent
While major European powers may have to contemplate nuclear deterrence without America, the national flexibility and European financial support required to make it feasible is currently difficult to imagine.
The Future of Nuclear Proliferation after the War in Ukraine
In the context of deep changes to the international security environment, especially the war in Ukraine, the risks of nuclear proliferation seem quite high, especially in the Middle East and East Asia.
Naval Nuclear Propulsion: The Technical and Strategic Challenges of a Restricted Technology
The technical and operational capabilities of naval nuclear propulsion - discretion, power, autonomy and manoeuvrability - make this technology a strategic asset for nuclear deterrence.
The Wind Rose’s Directions: Russia’s Strategic Deterrence during the First Year of the War in Ukraine
Support independent French research
Ifri, a foundation recognized as being of public utility, relies largely on private donors – companies and individuals – to guarantee its sustainability and intellectual independence. Through their funding, donors help maintain the Institute's position among the world's leading think tanks. By benefiting from an internationally recognized network and expertise, donors refine their understanding of geopolitical risk and its consequences on global politics and the economy. In 2025, Ifri supports more than 80 French and foreign companies and organizations.