On January 19, 2026, the U.S. Space Force officially terminated the Resilient GPS (R-GPS) program, a $1 billion initiative designed to augment the existing GPS constellation with a “proliferated” layer of small, low-cost satellites.
Despite this cancellation, Congress has pushed back, including funding in draft legislation to continue the development of resilient positioning, navigation, and timing (PNT) capabilities.
The “R-GPS” Strategy and Its Sudden End
The R-GPS program was conceived to address the growing threats of signal jamming and spoofing by adversaries like Russia and China.
- Architecture: The plan called for roughly 20 small satellites—costing between $50 million and $80 million each—to transmit core GPS signals. These were intended to provide a secondary, harder-to-disrupt layer to the “exquisite” $250 million GPS III/IIIF satellites.
- Quick Start Authority: The program was a flagship for the Pentagon’s new “Quick Start” authority, which allowed officials to move from concept to contract in under six months.
- Termination Rationale: Space Systems Command (SSC) omitted R-GPS from the Fiscal Year 2026 budget request, citing “higher Department of the Air Force priorities” and a shift toward integrating technical lessons from the program’s early design phase into the broader modernization strategy.
Congressional Defiance and Alternative PNT
While the Space Force has shelved the satellite layer, congressional appropriators have expressed “dismay” at the service’s decision to pause procurement of larger GPS IIIF satellites and end R-GPS.
- Continued Funding: The draft FY26 defense spending bill provides $15 million to continue “the development of resilient GPS space systems” and another $15 million for a demonstration of commercial PNT services.
- Skepticism of Marginal Gains: Some lawmakers and experts, including the Resilient Navigation and Timing Foundation, argued that R-GPS offered only a “marginal” improvement at a high cost, urging the military to instead pursue a more diverse PNT architecture that combines signals from space, terrestrial broadcast, and fiber.
- Commercial Contenders: The focus is shifting toward commercial LEO PNT providers such as Xona Space Systems and TrustPoint, which the military may now look to for “as-a-service” solutions rather than building a proprietary government constellation.
Impact on Industry Partners
The cancellation halts the development of the “Lite Evolving Augmented Proliferation” (LEAP) satellites by several industry teams:
- Astranis and Xona Space Systems
- L3Harris Technologies
- Sierra Space
- Axient (acquired by Asterion)
The Path Forward: Hardening the Core
Space Force remains committed to its primary modernization efforts, reassigning the GPS III SV09 satellite to a SpaceX Falcon 9 booster to accelerate its deployment to “within weeks”. Starting with SV13, the next generation of GPS IIIF satellites will use the LM2100 Combat Bus, a cyber-hardened platform designed to provide a “quantum leap” in resilience against jamming and cyberattacks.