“投入作战服役”，法国国防部宣布

Core Viewpoint - France has announced the launch of the M51.3 submarine-launched ballistic missile, marking a significant milestone in the modernization of its maritime nuclear deterrent capabilities [3][5]. Group 1: Missile Specifications and Capabilities - The M51.3 missile is equipped with new nuclear warheads and has improvements in range, accuracy, and the ability to penetrate enemy air defense systems [5]. - The missile will be deployed on four of France's "Triomphant" class strategic nuclear submarines [5]. - The estimated range of the M51.3 missile exceeds 9,500 kilometers, compared to over 9,000 kilometers for its predecessor [5]. Group 2: Strategic Importance - The French Ministry of Defense emphasizes that the M51.3 missile ensures the reliability of France's sea-based nuclear forces amid the ongoing upgrades of enemy missile defense systems [5]. - The launch of the M51.3 missile aligns with France's military planning goals for 2024-2030, aimed at accelerating the modernization of military capabilities and ensuring long-term reliability of deterrent forces, which is a cornerstone of national security [5].