Green Berets have been testing glider drones that can slip undetected past enemy electronic sensors

Spc. Skylin Simpson/US Army

As the US military grapples with the challenge of moving, communicating, and resupplying forces without giving away their positions through electronic emissions, glider drones are emerging as a potential option, a Special Operations Command Europe logistics official told Business Insider this week at the annual SOF Week conference in Tampa, Florida.