The Department of Defense, through the Missile Defense Agency (MDA), is seeking proposals for the Small Business Innovation Research (SBIR) topic titled "Over-the-Horizon Radar (OTHR) Operational Fusion." The objective is to develop and implement algorithms that will fuse OTHR tracks with Overhead Persistent Infrared (OPIR) data, enhancing the quality and continuity of composite track data for long-range airborne weapons throughout their mission cycle. This initiative is critical for improving military capabilities and integrating advanced tracking technologies into the Government's Command and Control, Battle Management, and Communications (C2BMC) systems. Proposals for Phase II are due by June 12, 2024, and interested parties can find more information and submit their applications through the official SBIR website at https://www.dodsbirsttr.mil/topics-app/.