AS UKRAINE’S STOCKS of artillery shells have dwindled, its military’s reliance on drones has grown. These are in a position to ship ammunition with nice precision over lengthy distances—offered they’ll keep connections with GPS satellites (in order that they know the place they’re) and their operators (in order that they know what to do). Such communication indicators will be jammed, nevertheless, and Russia’s digital warfare, as indicators scrambling is understood, is fearsomely efficient. With massive numbers of its drones in impact blinded, Ukraine’s drone technologists have been pressured to get artistic.