As Ukraine faces shortages of air defense missiles, it is increasingly relying on the low-cost “Lima” electronic warfare system to disrupt and redirect Russian drones and missiles. According to a Politico report, Lima, developed by Ukrainian defense startup Cascade Systems (registered in the United States), works by interfering with satellite navigation signals rather than physically destroying incoming weapons.JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official. Unlike traditional kinetic air defense systems shooting down a target with a flying projectile, Lima jams and spoofs GPS/GLONASS guidance, causing Russian drones and missiles to veer off course, rendering attacking weapons ineffective by increasing miss distance. If satellite signals are blocked, weapons can switch to inertial navigation, but accuracy may drift by around 2,000 meters per 100 km traveled. “When Lima is on, it makes missile deviation even greater. In addition to simply suppressing navigation, we use spoofing and the substitution of coordinates by several kilometers. We can make their missiles fall in fields instead of hitting their targets,” said a developer known as “Alchemist,” a commander of Ukraine’s Night Watch electronic warfare unit. He added that in some cases, systems can make incoming weapons believe they are located elsewhere entirely: “Some past attacks were diverted by making the incoming weapons think they are in Peru.”