France Floats EU Nuclear Sharing
France is set to host talks on sharing its nuclear capabilities with other European countries. The proposal includes potentially stationing nuclear-capable jets in allied nations, a major strategic shift driven by the war in Ukraine and rising uncertainty over U.S. security commitments.
In a major policy shift announced in early March 2026, French President Emmanuel Macron introduced a new doctrine of "forward deterrence." This change includes increasing France's nuclear warhead stockpile for the first time since 1992 and ending public disclosure of its arsenal's total size to create strategic ambiguity. The proposal does not involve NATO-style nuclear sharing where allies host weapons and have a role in policy. Instead, France would retain sole authority over any decision to use its nuclear arms, a principle at the core of its "force de frappe" since its inception. Germany and France have established a high-level "nuclear steering group" to coordinate doctrine and strategic cooperation. France has also extended invitations for dialogue and joint exercises to other European nations, including Poland, the Netherlands, Belgium, Greece, Sweden, and Denmark. Historically, France has maintained a fiercely independent nuclear deterrent and is the only NATO member not part of the alliance's Nuclear Planning Group. While past French presidents have hinted that the nation's "vital interests" have a European dimension, this is the most concrete step towards embedding its deterrent within a European security framework. Maintaining and modernizing this independent arsenal is costly. A €37 billion funding package was approved for 2018-2025, with the nuclear program consuming around 12.5% of the total defense budget in 2020. Reactions from allies have been cautiously positive. Germany has engaged directly, while nations like Lithuania welcome the move as a complement to, but not a replacement for, the U.S. nuclear umbrella and existing NATO structures. A senior Pentagon official called a "greater European complexion to NATO nuclear deterrence" appropriate but expressed skepticism that France's deterrent, designed for its own defense, could be extended. The U.S. has also stated it would "strenuously oppose" allies like Poland developing their own nuclear weapons. The long-term viability of this policy may face political tests within France itself. The 2027 presidential election looms, and nationalist political figures like Marine Le Pen have previously voiced opposition to the idea of sharing the French deterrent.
