On the battlefield too, Ukraine’s top general has called for more widespread use of drones, both to save the lives of Ukrainian troops and to negate Russia’s material advantage in arms and ammunition.

“It is these unmanned systems – such as drones – along with other types of advanced weapons, that provide the best way for Ukraine to avoid being drawn into a positional war, where we do not possess the advantage,” Ukraine’s Commander-in-Chief of the Armed Forces, Valerii Zaluzhnyi, wrote in a CNN op-ed last week.