Thumpalumpacus
Major
The UAF has a lot of new and non compatible equipment to organize and mobilize. I'm sure they are paying more attention to the logistics chain than the other guys.
If they're not doing this, they should be. Right now they're fighting for time to integrate the new weaponry, and that may demand retreats until they get the new stuff spooled up. But they'll be falling back onto supply lines if that is indeed what they choose to do, whereas the Russians ... well, "running out of gas" can be both literal and figurative as a turn of speech.