Yahoo! News
Ukraine is using a network of thousands of mobile phones deployed across the country to track incoming drones and missiles.
The project, which Ukrainian sources have said is too secretive to discuss in detail, was disclosed by the US Air Force’s most senior officer in Europe at a recent event.
General James Hecker, head of US Air Forces in Europe, described the most simplistic acoustic sensors as a network of thousands of mobile phones attached to 6ft poles.
