Relatively static positions means men, machinery and equipment are vulnerable to munitions from the air - think WWI with artillery and mortar.This war is all about infantry, drones and artillery. The ukes haven’t been able to properly use their western supplied armour to any real effect and the Russians have had their heavy armour systematically wiped out.
Meatgrinder is an apt term for this type of warfare.
While the drones will still have an impact if the fighting becomes more fluid (moving), they won't have the same impact as they are now.
