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Space Force announces Operational Acceptance for SBIRS missile-warning system

May 02, 2025

EL SEGUNDO, Calif. The U.S. Space Force Strategic Missile Warning Ground and Integration Acquisition Delta at Space Systems Command, in partnership with Space Operation Command’s Mission Delta 4 (MD4), reports that it achieved Operational Acceptance for the Space Based Infrared System (SBIRS) Survivable Endurable Evolution (S2E2) program on April 25, 2025. This milestone represents a major step forward in ensuring U.S. missile-warning systems remain operational and resilient even in contested and degraded environments.