An array of aerial drones are playing a critical role for both | Radio Free Europe / Radio Liberty

An array of aerial drones are playing a critical role for both the Ukrainian and Russian militaries as they fight over Ukraine's eastern Donbas region. Ukrainian forces are using commercial drones for surveillance and have destroyed several Russian tanks with Turkish-built Bayraktar unmanned aerial vehicles (UAVs). Russia's fleet of Orlan-10 drones, meanwhile, help pinpoint artillery fire with deadly accuracy.