European Nuclear Deterrence

French President Emmanuel Macron used a March 2 speech at France’s L’Ile Longue ballistic‑missile‑submarine base to announce that France will, for the first time since at least 1992, increase its stockpile of nuclear warheads and adopt a posture allowing temporary deployment of its nuclear‑armed aircraft to allied European countries. Macron said the new strategy is meant to bolster Europe’s independent deterrent amid Russia’s war on Ukraine and growing doubts about U.S. commitments under President Trump, stressing that while French aircraft could operate from partner territory, Paris alone will retain decision‑making authority over any nuclear use. He confirmed that talks on such arrangements have begun with the U.K., Germany, Poland, the Netherlands, Belgium, Greece, Sweden and Denmark, and invited partners’ non‑nuclear forces to participate in French nuclear exercises. Germany quickly welcomed the shift, with Chancellor Friedrich Merz and Macron issuing a joint statement on deeper deterrence integration, while Dutch ministers told lawmakers they see French nuclear cooperation as a supplement, not a replacement, for NATO’s U.S.‑led umbrella. For U.S. readers, the move signals a significant evolution in Europe’s nuclear architecture that could both reinforce NATO deterrence and accelerate talk of a more autonomous European security pillar if confidence in Washington continues to erode.