The world is facing a growing crisis of GPS dead zones as cheap, powerful jammers become widely available. Nations and individuals are deploying electronic-warfare systems to counter drone and smart munition threats, creating interference that disrupts satellite navigation signals from 12,000 miles above Earth. These GPS jammers, some as small as cellphones and costing under $100, are proliferating rapidly.

Airline operators, shipping firms, and militaries are scrambling to find navigation alternatives as GPS interference spreads. The technology's vulnerability stems from its reliance on weak signals from distant satellites, making it susceptible to jamming from relatively inexpensive devices. This has created a navigation crisis that affects everything from commercial aviation to maritime shipping and military operations.

The surge in electronic warfare capabilities is forcing industries to develop backup navigation systems. Companies are investing in inertial navigation, terrestrial radio beacons, and other technologies to ensure reliable positioning when GPS fails. This technological arms race between jammers and countermeasures is reshaping how critical infrastructure maintains its navigation capabilities.