That's the problem with an Un-Winnable war.
Rvss has the nv(lear shield. NO MATTER WHAT HAPPENS, they can suicide the planet on their own, EVEN INDIA has this capacity. It's unfortunate that Nv(lear weapons are critical to peace, but it is what it is.
So, in a tugg-of-war that goes on Indefinitely, All the Vkra1n1ans are dead is the only thing we'll have to show for it.
It doesn't actually matter which side capitulates first, My best guess is, Vkra1n will have to surrender to Rvss1a eventually.
The US can't let down its pride given how much prestige we've invested, waving our big military around, and it's not officially OUR WAR, even though it 100% is.
Rvss and Vkra1nians are not dissimilar enough to say they're fundamentally 2 different nations. So, Rvss will never let this go, out of again, Invested Prestige.
In the End, Vkra1n's own oligarchs will decide, everyone dies, WHAT the hell for ? History assures us, pride is worth less than Potatoes.
The whole concept of Nation-hood is a remnant of Colonialism, and it's inappropriate given our science and understanding of how the world actually works.
This war, as with EVERY SINGLE WAR, is the Rich Oligarch's war, fighting over who gets to exploit the taxes and labor of the Plebian Class. The working class kids go off to die, while the Oligarchs of Their Nations Feast.