It's too early to call the outcome of Putin's invasion. When the Republican Party take control of the Congress in a few weeks, they will do everything possible to stop US aid to Ukraine. As European aid is barely more than a bad joke, this will mean the end of Ukraine's ability to go on the offensive. After that, as the Ukrainian economy declines thanks to Putin's many war crimes, and as flabby self-obsessed Europeans take to the streets in increasing numbers demanding "peace" (e.g. sacrificing Ukraine) in the hope of getting back some nice cheap Russian oil and gas, Putin's rabble could still end up winning despite all the many problems that cause them to be such a failure when confronted by more than unarmed civilian women and children. So the USA, thanks to the 74 million cretins who adore the creature Trump and will vote for any lump of human vermin who repeats his infantile lies about a "stolen" election, will likely determine the fate of Ukraine. And frankly, it's not looking good.