DARPA Tests Autonomous Robots Without GPS

Four uncrewed ground vehicles searched for enemy forces during a Fort Knox, Kentucky exercise under DARPA's RACER program.

Updated on Nov. 14, 2026 in Robotics

DARPA Tests Autonomous Robots Without GPS

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The Defense Advanced Research Projects Agency tested four uncrewed ground vehicles in groups at Fort Knox, Kentucky, where they independently searched for enemy forces. The robots operated without GPS, building maps as they moved while a human operator supervised and assigned tasks.

Why it matters

The exercise shows how the US military is developing navigation methods for environments where GPS is unavailable or contested. Lessons from the RACER demonstration are expected to inform ongoing development of uncrewed technologies across the US military.

The software was tested on four-wheel all-terrain and tracked uncrewed ground vehicles, with navigation relying only on onboard sensors. The source does not report specific processing, range, or accuracy metrics for the systems.

The players

Defense Advanced Research Projects Agency (DARPA)

DARPA is the research and development agency of the US Department of Defense, responsible for developing emerging military technologies.

The details

During the RACER exercise, one vehicle stopped once it identified a closed box holding a drone, and the human operator then decided to launch a simulated rocket at the identified target. The operator used satellite imagery to task the robots, while the vehicles made movement decisions using only their own sensors. DARPA's work drew on observations from Russia's war in Ukraine.

October 2026: RACER exercise with four uncrewed ground vehicles held at Fort Knox, Kentucky.
Five years before 2026: RACER program research into autonomy and artificial intelligence algorithms began.

The Tech Race

The RACER demonstration builds on DARPA's multi-year autonomy program and reflects a broader push to field robots that navigate without satellite positioning. Lessons drawn from Russia's war in Ukraine are shaping how the US military approaches uncrewed ground systems.

Advances in GPS-independent navigation could eventually influence the autonomous systems used in civilian logistics and mapping. For now, the RACER work remains a military research effort with no consumer products announced.

The takeaway

Autonomous systems that can operate without GPS are becoming a priority for defense planners, and the progress made in exercises like RACER points to where navigation technology may head next.