DOW said Friday Raytheon will produce and assemble SM-3 Block IIA all-up rounds to support foreign military sales case requirements under the noncompetitive, undefinitized contract action. That followed a 2025 contract worth $1 billion from MDA to deliver SM-3 Block IB all-up rounds, and a 2024 award of a potential $1.94 billion contract from the agency to manufacture SM-3 Block IIA interceptors. What Is SM-3 Block IIA? SM-3 Block IIA is a next-generation interceptor that Raytheon is developing in cooperation with Japan. SM-3 Block IIA serves as the centerpiece of the European missile defense architecture and is slated for deployment in Poland to complete Phase 3 of the European Phased Adaptive Approach.