Search on Ifri.org

About Ifri

Frequent searches

Suggestions

Nuclear deterrence

See all
Publications
Press
Watch and listen
Image principale

France-Germany: Overcoming Differences to Strengthen European Sovereignty

Date de publication
15 July 2026
Accroche

The Franco-German “reset” launched with Friedrich Merz’s appointment as Chancellor in May 2025 and given concrete form at the Franco-German Council of Ministers (FGCM) in Toulon in August 2025 was intended to address the structural challenges affecting the bilateral relationship. Yet it is clear that these ambitions have only been partially translated into concrete action. Since the beginning of 2026, Franco-German relations have entered a phase in which short-term challenges have combined with deeper divergences over priorities, policy approaches, and strategic culture.

Image principale

How does France’s nuclear deterrent contribute to the defense of Europe?

Date de publication
10 July 2026
Accroche

France’s nuclear deterrent, serving first and foremost to defend France’s vital interests, also contributes to the defense of Europe. This contribution has been recognized within the North Atlantic Alliance since 1974, but remains little known. In a speech closely followed by France’s European partners and its adversaries alike, President Emmanuel Macron announced a new concept for French nuclear deterrence: “forward deterrence” (dissuasion avancée). This article aims to explain the origins of this concept, outline its main pillars, and describe the partnerships that are sought. It then discusses the relationship with the U.S. doctrine of “extended deterrence”, and finally offers some ethical considerations.

Mind the Deterrence Gap: Assessing Europe’s Nuclear Options

Date de publication
11 February 2026
Accroche

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.

Image principale

Russia's Nuclear Deterrence Put to the Test by the War in Ukraine

Date de publication
06 October 2025
Accroche

From the outset of its “special military operation” (SVO) against Ukraine on February 24, 2022, Russia, which possesses one of the world’s largest nuclear arsenals, has adopted aggressive deterrence measures and a resolutely menacing rhetorical stance.

Image principale

How should Britain and France cooperate to realise the Northwood Declaration?

Date de publication
18 July 2025
Accroche

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.

Image principale

From Cuba to Ukraine: Strategic Signaling and Nuclear Deterrence

Date de publication
03 December 2024
Accroche

Strategic signaling—the range of signs and maneuvers intended, in peace time, to lend credibility to any threat to use nuclear weapons—is back.

Image de couverture de la publication
Couverture Politique étrangère 4-2024

The New Geopolitics of Energy

Date de publication
03 December 2024
Accroche

Following the dramatic floods in Valencia, and as COP29 opens in Baku, climate change is forcing us to closely reexamine the pace—and the stumbling blocks—of the energy transition.

Image principale

The Future of Europe’s Strategic Deterrence is (also) at Sea

Date de publication
11 June 2024
Accroche

A cursory look at both France and the UK suggests that the future of European nuclear deterrence is at sea.

Image principale

The Future of Nuclear Proliferation after the War in Ukraine

Date de publication
16 April 2024
Accroche

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.

 
Nicholas L. MILLER

French thinking on AI integration and interaction with nuclear command and control, force structure, and decision-making

Date de publication
13 November 2023
Accroche

This paper analyses the French literature on France’s perception of military AI, especially its consequences on strategic systems and competition, and nuclear deterrence.

Image principale

France-Germany: Overcoming Differences to Strengthen European Sovereignty

Date de publication
15 July 2026
Accroche

The Franco-German “reset” launched with Friedrich Merz’s appointment as Chancellor in May 2025 and given concrete form at the Franco-German Council of Ministers (FGCM) in Toulon in August 2025 was intended to address the structural challenges affecting the bilateral relationship. Yet it is clear that these ambitions have only been partially translated into concrete action. Since the beginning of 2026, Franco-German relations have entered a phase in which short-term challenges have combined with deeper divergences over priorities, policy approaches, and strategic culture.

Image principale

How does France’s nuclear deterrent contribute to the defense of Europe?

Date de publication
10 July 2026
Accroche

France’s nuclear deterrent, serving first and foremost to defend France’s vital interests, also contributes to the defense of Europe. This contribution has been recognized within the North Atlantic Alliance since 1974, but remains little known. In a speech closely followed by France’s European partners and its adversaries alike, President Emmanuel Macron announced a new concept for French nuclear deterrence: “forward deterrence” (dissuasion avancée). This article aims to explain the origins of this concept, outline its main pillars, and describe the partnerships that are sought. It then discusses the relationship with the U.S. doctrine of “extended deterrence”, and finally offers some ethical considerations.

Mind the Deterrence Gap: Assessing Europe’s Nuclear Options

Date de publication
11 February 2026
Accroche

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.

Image principale

Russia's Nuclear Deterrence Put to the Test by the War in Ukraine

Date de publication
06 October 2025
Accroche

From the outset of its “special military operation” (SVO) against Ukraine on February 24, 2022, Russia, which possesses one of the world’s largest nuclear arsenals, has adopted aggressive deterrence measures and a resolutely menacing rhetorical stance.

Image principale

How should Britain and France cooperate to realise the Northwood Declaration?

Date de publication
18 July 2025
Accroche

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.

Image principale

From Cuba to Ukraine: Strategic Signaling and Nuclear Deterrence

Date de publication
03 December 2024
Accroche

Strategic signaling—the range of signs and maneuvers intended, in peace time, to lend credibility to any threat to use nuclear weapons—is back.

Image principale

The Future of Europe’s Strategic Deterrence is (also) at Sea

Date de publication
11 June 2024
Accroche

A cursory look at both France and the UK suggests that the future of European nuclear deterrence is at sea.

Image principale

The Future of Nuclear Proliferation after the War in Ukraine

Date de publication
16 April 2024
Accroche

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.

 
Nicholas L. MILLER

French thinking on AI integration and interaction with nuclear command and control, force structure, and decision-making

Date de publication
13 November 2023
Accroche

This paper analyses the French literature on France’s perception of military AI, especially its consequences on strategic systems and competition, and nuclear deterrence.

The Wind Rose’s Directions: Russia’s Strategic Deterrence during the First Year of the War in Ukraine

Date de publication
28 August 2023
Accroche
Since the beginning of the Russian war of aggression on Ukraine, and even before February 2022, the Russian government has conducted intense nuclear rhetoric and actions.
Logo
logo_politico.png

Europe is Quietly Debating a Nuclear Future Without the US

08 July 2024
Accroche

America has protected Europe with is nuclear umbrella for more than 70 years. In the era of Vladimir Putin and Donald Trump, the continent is quietly debating a different nuclear future.

Logo
the-national-interest-logo.jpg

An Engine Replacement Could Kill Europe’s Huge F-35 Plans

03 May 2022
Nom du journal, revue ou émission
The National Interest
Accroche

If the decision to replace the engine for the F-35A is implemented, countries flying F-35s will find themselves forced into unforeseen and overly complicated supply chains.

Logo
rfi.png
Image principale médiatique

France to spell out post-Brexit nuclear weapons strategy

07 February 2020
Accroche

France, the European Union's sole nuclear power since Britain's exit from the bloc, will unveil Friday how it intends to use its atomic arsenal as a deterrent in an increasingly unstable world.

Ditching U.S. Nuclear Protection in Europe: Will It Trigger a Nuclear Arms Race?

05 August 2024
Nom du journal, revue ou émission
European Resilience Initiative Center
Accroche

What if France takes over the U.S. role in providing nuclear deterrence for Europe? What happens to U.S. nuclear weapons stationed on the European continent? Could France’s increased nuclear security role lead to proliferation and a new arms race? Join us as we delve into European nuclear security, the Iranian nuclear program, and the roles of Russia and China in supporting Iran.

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 2026, Ifri partners with over 90 French and international companies and organizations.

Presentation of Ramses 2026, Ifri, Paris
Decoration
Our experts in the media
Discover all our services
Logo
wall street journal

"There's a difference between what our allies expect and what France is prepared to offer," said Héloïse Fayet, head of the deterrence and proliferation program at the French Institute for International Relations.