This past May, a twin-engine Beechcraft King Air medevac plane took off from Roswell, New Mexico, and headed west to the town of Ruidoso to pick up a patient. It shouldn't have been a challenging flight for the two pilots and two nurses aboard. The temperature was 69 degrees; the sky was clear. The 60-mile journey normally takes a half hour, at most. But once airborne, the plane ran into trouble. At the White Sands Missile Range that night, US military personnel were conducting a GPS jamming exercise that left the King Air pilotsand anyone else within hundreds of miles"unable to use modern navigation systems. Forced to revert to older technology, ones that they rarely if ever use, the medevac pilots got disoriented and crashed into the side of a mountain. There were no survivors. The accident marked the first time that GPS jamming had contributed to the crash of a civilian plane in the United States. But it was just one of a string of recent disruptions across the world. In the past year, the US military appeared to have sent out notices for at least 10 such exercises. "As drone warfare and electronic warfare expand, airlines are increasingly encountering navigation disruptions hundreds of miles beyond the actual conflict zone," says Eliran Almog, CEO of the cybersecurity firm Cyviation. Since 2023, planes flying over large swaths of the Middle East, the Black Sea, and the Baltic Sea regions have endured waves of GPS jamming.