I think their cell towers help a bit with that! A general has to be dumb and ignorant to carry a cellphone into that kind of environment, where the enemy has control of the cell network. You would be shocked at what even a RC hobbyist could do with a home made drone in that environment, the Russians are almost defenseless and switchblade equivalents ain't hard to make with off the self components and even cheap foam planes ordered by the hundreds. The Russians seem pretty defenseless against that shit, I expected electronic jamming at least. Seriously, the technology has been well developed and is almost ubiquitous in some places. They don't need to make a thing, buy the parts online, fly them into Poland and assemble, if they organized the RC flying clubs in the country and drew people from there, it could get up and running pretty quickly. Hand launched killer drones on the cheap effective out to 5 or 10 miles.