If Kharkiv falls how much disruption and morale damage are we talking?
If I am recruited as a saboteur, I would shoot at random trees and stuff and claim that I have shot Ukrainians. As you said, no one would know.Free Gun. Free Money.
Also it’s not like you can’t keep it for yourself. The Russians aren’t gonna bust your door down going room to room.
The U.S was thousands of miles from Vietnam, the Russians are next door.I think this is similar to US did in vietnam they slowly increase their military presence to avoid outside intervention the problem is this will gave Ukraine valuable time to reorganize their military and make russian offensive more difficult