I recall the Russian terms as being unreasonable and rewarding Putin, one crazy man, to extort dominion over the regions of Ukraine HE decided he wanted which violated the UN Charter and destroys international order and integrity. Sorry, Russia will learn the hard way some people would rather live free or die. The real threat is the existential reality that if they can’t win as normal warriors, without nukes, or take the easy path and withdraw, then Russia will be eternally erased from human history. This is the reality they must face and that is how serious a mistake Putin made and continues to double down on.