The Russian assault, caught in grainy feeds from multiple drones, is relentless and daily. Aging armored vehicles race across a pockmarked field. Then, in broad daylight, one tank is stopped by Ukrainian attack drones. Yet two vehicles make it to the treeline and drop off Russian troops to shelter in the scant winter foliage. Minutes later, more drones strike the lone dismounts.

Another tank, partially damaged in its first run, continues through the treeline ahead. It breaks into the next open field, with some troops apparently clinging still to its battered exterior. The sight and its bloodshed are perversely intimate in the live detail, even though the horror we are watching is about 10 miles away.

Once the tank is halfway across the next field, the swarm of single-use drones strikes it again and it slows to a smoking halt. However much of each assault they kill, the Ukrainians complain, the few Russians who advance are immediately reinforced by another 10.