Reuters was first to report in October 2024 that the Navy was moving forward with plans to arm its vessels with Patriot Advanced Capability-3 Missile Segment Enhancement (PAC-3 MSE) interceptors, driven by fears that China would deploy hypersonic weapons to sink ships in the Pacific.
The deployment will strengthen the missile defense shield protecting the Navy’s fleet of destroyers. Lockheed Martin has pursued the integration for several years, but the new contract marks the first concrete step toward fielding the Army interceptor on Navy surface ships.
The rationale for the move has been building for years. As Reuters reported in 2024, PAC-3s are more agile than existing Navy interceptors, and their “hit to kill” concept – in which the missile strikes its target directly rather than exploding nearby – makes it particularly lethal against high-speed maneuvering ballistic missiles.
The PAC-3 MSE could provide an additional layer of protection for Aegis-equipped warships, which currently rely on interceptors from the Standard Missile family – including SM-2, SM-3, and SM-6 — as well as the RIM-162 Evolved SeaSparrow Missile.
Demand for the Patriot weapon has surged. Under a deal signed between Lockheed Martin and the Pentagon in January, production of the interceptor is set to triple over the next seven years, increasing from about 600 missiles annually to more than 2,000.
