The Navy plans to begin buying Patriot Advanced Capability-3 Missile Segment Enhancement interceptors for the first time in a bid to increase magazine depth and complement existing capabilities like the Standard Missile. The service is upgrading the MK 41 vertical launch systems on its warships, enabling “many or most of our platforms afloat” to accommodate the PAC-3, according to Rear Adm. Benjamin Reynolds, deputy assistant Navy secretary for budget and fiscal management division director. On Tuesday, Lockheed Martin announced...