It is not free for Putin to keep this land, drones will fly and kill his men , destroy his refineries, infrastructure etc. Gazprom has giant loses for the first time, Putin also needs to protect himself from the oligarchs that he screwed over with his imperialistic dreams. Ruzzia's economy is not doing well, if you notice in all the demands for peace Putin includes "please, please remove the sanctions". From what I see onlyne Zeds fray to God that Trump will save their SMO from failure, hopefully there are still soem repuplicans with brains around to prevent any truly zetarded decision.