France is undertaking a $1.7 billion modernization of its Luxeuil Air Base to prepare for a future nuclear role, including hosting next-gen Rafale jets equipped with ASN4G hypersonic nuclear missiles by 2035. The 10-year overhaul will double the base’s size, upgrade 1950s-era infrastructure, and significantly expand personnel. The move comes amid rising nuclear tensions following Russia’s invasion of Ukraine. French President Emmanuel Macron also suggested extending France’s nuclear deterrent to European allies, signaling a more assertive nuclear posture in Europe’s defense strategy.