A $300 drone can blow up a tank or other combat vehicle that a 3 million USD or more one. This is the viewpoint of Ukrainian proponents of drone development, and it suggests the center of a revolution in technology currently remapping the Ukraine-Russia war.

Ukraine’s once-formidable advantage in drone warfare appears to be eroding along parts of the front line. This degradation extends far beyond the immediate front—more Russian drones now prowl for targets up to 25 kilometers (roughly 16 miles) behind the contact line, and they have been hitting their targets more effectively.