President Emmanuel Macron made a dramatic visit to a tightly guarded nuclear submarine base, arriving with a flight of Rafale fighters capable of carrying nuclear weapons, and delivered a speech that doubled as both warning and reassurance for allies.
“To be free one must be feared,” he said. “And to be feared one must be powerful.” Macron argued that France, one of only two European states with an independent nuclear strike force, is strongest when it offers a protective umbrella to countries Paris deems part of its “vital interests.”
Against a backdrop of renewed Russian nuclear posturing and what he described as a “resetting of priorities” in Washington, Macron urged Europe to take more control of its defense. He pointed to conflicts in the Middle East and a tougher global environment and called for Europe to strengthen its deterrent. “We must think of our nuclear deterrent on a European scale,” he said.
Key policy shifts — and what remains unchanged
Macron announced that France will increase its stockpile from roughly 290 warheads and will stop publicly publishing the exact count. At the same time he stressed that any French nuclear posture would be coordinated with NATO and designed to complement the alliance’s deterrent. Crucially, he ruled out NATO-style “nuclear sharing”: Paris will not cede joint decision-making over the use of its weapons or place them under cooperative control on foreign soil.
France does not participate in NATO nuclear mechanisms, Macron noted, but it will widen cooperation in what he called “advanced deterrence.” That concept includes the temporary basing of French nuclear-capable aircraft in allied countries, multinational exercises tied to nuclear planning, and official visits to French nuclear facilities. Alongside the United Kingdom, Macron named Belgium, Denmark, Germany, Greece and the Netherlands as partners; Sweden’s prime minister later said Sweden had also signed on.
Germany moves to the forefront
Germany’s chancellor, Friedrich Merz, announced that Germany would be the first major partner to deepen cooperation with Paris. The bilateral effort will feature joint exercises and work on early-warning systems, air defenses and long-range strike capabilities.
Claudia Major of the German Marshall Fund described the pact as “groundbreaking,” highlighting how quickly Berlin has shifted from a recent focus on disarmament to active nuclear cooperation with France. She also stressed that Macron’s repeated emphasis on keeping policies NATO-friendly allows partners to join without appearing to replace the U.S. deterrent. Still, she said, French leaders will maintain sole command over their arsenal. “They will never compromise on the autonomy, never on the sovereign nature of the chain of command,” Major said.
A more collaborative French stance than expected
Darya Dolzikova of the Royal United Services Institute said she was surprised by how open Macron’s proposals are to allied cooperation, even as France insists on retaining sovereign control. Measures such as forward deployment of nuclear-capable systems and bilateral nuclear planning, she said, “open up the door to much closer coordination with allies on nuclear issues than I expected the French to be ready for.”
Dolzikova, who has urged Europe to reassess its nuclear posture amid uncertainty over U.S. guarantees, said Macron’s moves appear substantive rather than purely rhetorical. She warned, however, that stationing strategic systems farther east raises the risk France could be drawn into hostilities early if those assets were attacked. Still, she called the initiative a serious French attempt to assume responsibility for European security.
Pushback in Sweden and at home
Not all reactions were favorable. In Sweden, where a long-standing preference for disarmament remains influential, Green Party politicians criticized the idea of extending a French nuclear umbrella, warning it could accelerate an arms race. Sweden’s government has said it would not host nuclear weapons during peacetime; Green spokesman Daniel Helldén argued that expanding arsenals “will not make Europe safer,” and urged a focus on stronger conventional forces and resilient societies.
Domestically in France, the far-right National Rally attacked Macron’s plan as a political stunt that risks dispersing national deterrent capabilities across Europe. Marine Le Pen and Jordan Bardella called the measures irresponsible; Bardella, who currently leads in some polls ahead of the April 2027 presidential race, has opposed deeper integration of French defense assets.
Timing and political calculus
Analysts say timing is part of Macron’s calculus. Claudia Major suggested the president is trying to lock in practical steps before the next presidential election, making it harder for a successor from the far right to reverse the arrangements quickly. That urgency, combined with rising global security risks, helps explain why Macron moved now.
What Macron unveiled is not a full sharing of control, but a more forward-leaning, cooperative posture that lets France project its deterrent in a way intended to reassure European partners while preserving national command. Whether the steps ease allied security concerns without increasing the risk of entanglement remains the central question for policymakers in Paris and across Europe.