France’s new M51.3 nuclear missile makes first submarine launch

On October 6, 2026, France's defense procurement agency, the DGA, confirmed a significant milestone for its naval capabilities with the successful initial launch of the M51.3 ballistic missile from a French Navy SSBN. This marks the operational debut of the M51.3, representing a key component in France’s strategic deterrent posture. The test occurred at an undisclosed location within French territorial waters, adhering to stringent safety protocols established by the DGA. Following the launch, telemetry data indicated full functionality and trajectory accuracy of the missile. This event underscores France’s ongoing investment in advanced submarine technology and nuclear deterrence systems.