On the battlefields of Ukraine, new sights emerge. Thread-like filaments of wire, extended across open fields. Netting rigged up between trees along key supply roads. Both are responses to a hard-to-detect weapon able to sneak into spaces previously thought safe, hi tech and low tech all at once.
At a secret workshop in Ukraine’s north-east, where about 20 people assemble hundreds of FPV (first person view) drones, there is a new design. Under the frame of the familiar quadcopter is a cylinder, the size of a forearm. Coiled up inside is fibre optic cable, 10km (6 miles) or even 20km long, to create a wired kamikaze drone.
Capt Yuriy Fedorenko, the commander of a specialist drone unit, the Achilles regiment, says fibre optic drones were an experimental response to battlefield jamming and rapidly took off late last year. With no radio connection, they cannot be jammed, are difficult to detect and able to fly in ways conv...
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