Exail is promoting its Fiber Optic Gyro (FOG) inertial navigation technology as a critical capability for land warfare in environments where GPS and other global navigation satellite systems are jammed or denied. The company argues that the era of uncontested GPS dominance is over, making FOG-based systems a necessary alternative for maintaining precision in targeting and troop movement.
This push reflects a broader strategic shift as militaries worldwide confront increasingly sophisticated electronic warfare and counterspace threats. The ability to navigate without relying on satellite signals directly impacts force posture, allowing units to maneuver and deliver precision fires even under heavy jamming — a key requirement for modern peer-to-peer conflicts.
NATO allies and other partner nations are likely to watch such developments closely, as they seek to harden their own land forces against electronic attack. Meanwhile, adversaries investing in GPS-denial capabilities — such as Russia and China — may already be deploying systems that make FOG and similar solutions more urgent for Western militaries.
The article, sponsored by Exail, does not specify contract values or procurement timelines. It emphasizes the technology's high-end stability and its role as an autonomous “source of truth” for navigation, but provides no exact figures or budget details.
Analysts note that while FOG systems offer resilience, they remain expensive and require integration into existing vehicle platforms. Some experts caution that no single navigation solution is foolproof, and a multi-layered approach — combining inertial, celestial, and terrain-based methods — may be necessary to fully mitigate GNSS denial risks.