Ukraine’s drone manufacturers are scrambling to reach the Russian equipment that lurks beyond the radio horizon — the distance where the earth’s curvature blocks the video signal that Ukraine’s cheap strike drones depend on.

More than three years into Russia's full-scale invasion, Ukrainians across the country retreat each night to bomb shelters and metro stations in a nightly ritual.

Russia fired a record number of drones at Ukraine in July, an AFP analysis showed Friday, intensifying its deadly bombardment of the country despite US pressure to stop the war.Russian attacks have killed hundreds of Ukrainian civilians since June.