As for you, your last sentence is half right. Putin has all the gas, oil, coal and other Ukraine territory with good resources he wants. Now all he has to do is keep it, which may be a lot less easy than he thought it would be.
And the UFA, which is suffering terrible losses and is on the verge of losing the bit of Donbass it still occupies, is the threat? Or, are you thinking NATO is going to escalate?