From Volunteers Modifying Hobby Drones to Reaching Siberia: How Ukraine Built the Weapon Now Bleeding Russia’s Oil Empire

Ukraine's drone sector has transformed from an ad hoc network of volunteers modifying commercial quadcopters into an industry of hundreds of companies building strike drones that fly more than 1,000 kilometers. The result: airfields, depots, and refineries deep in Russia — including its largest, in Siberia — now within reach, with one-eighth of Russia's refining offline.