US Navy Naval Modular Missile concept includes submarine-launched SAM variant

The US Navy is pursuing the Naval Modular Missile (NMM), a modular family of interceptors built around a common Terminal Stage Interceptor (TSI) with multiple booster/canister configurations, including a version intended for future Virginia-class submarines. A submarine-launched anti-air missile would be a new capability for US submarines and could expand undersea platforms' self-defense and contribution to air/missile defense while enabling mixed/denser VLS loadouts via dual/quad-pack variants.