I was watching one of the many videos on the Ukraine war the other day and they were postulating that the different groups were competing for war spoils so both don’t cooperate and actively try to get one of the other groups to weaken the defenses enough (while being destroyed) so they can just roll in and claim whatever is being fought over like a coal mine.

Makes sense as the video was about the Russians sending multiple waves of tanks into a kill zone with no change of tactics and getting completely wiped out every time.