Good luck holding that territory for the next 30 years lol.
You have an enraged Ukrainian population that will IED and sniper the Russians for the next 50 years.
I think you have the Ruskies confused with the US. You know. Like we did in....
-Vietnam
-Iraq
-Afghanistan
-Syria
Oh, but that's okay! We've got a military that has the best the world can offer in LBGQTXYZRWBC training and a leader that can't stand vertical for two days in a row.
And then take a look at how the Ruskies took care of the Chechens when they tried that crap.
If history is an indicator, the Ruskies will be just fine with their win.