Getty Images Fibre optic drones are a terrifying new danger on Ukraine's front linesWe press up against it so the drone won't see us. That protection has evaporated with the arrival of fibre optic drones, and in the deployment of these devices, Russia currently has the edge. "Russia started using fibre optic drones much before us, while we were still testing them. Fibre optic drones do have drawbacks – they are slower and the cable could get entangled in trees. Moderator works on Ukrainian fibre optic drones, to use against the invaders"When you enter a position, you don't know whether you've been spotted or not.