Military platforms commonly use Global Positioning Systems (GPS) to find their position and navigate. GPS rely upon a specific and relatively weak satellite signal that is vulnerable to disruption. Known as Navigation via Signals of Opportunity (NAVSOP), BAE Systems’ new system is able to calculate its position by making use of the hundreds of different signals that are all around us. The NAVSOP system is also able to work in the most remote parts of the world, such as the Arctic, by picking up signals that include Low-Earth-Orbit satellites and other civilian signals. By exploiting a wide range of signals, NAVSOP is resistant to hostile interference such as jamming (a particular weakness of GPS) and spoofing, where a bogus signal tricks a device into misidentifying its location.