Unfortunately for Ukraine, Trump isn't going to come to the rescue, he'd prefer to have a Trump Tower Moscow. I wonder if any European leader would dare send their hardware (planes) over Ukraine, arguably "To stop war crimes" is a valid reason. It'd be politically deadly for them, all the MAGAesque populace will scream against it, and yeah it'd be risking Russian retaliation (not that Russia isn't already fighting them, with all the sabotages).

And then again, what can planes do defensively, they'd have to be dropping bombs in Russia to be effective, but that'll really be a NATO escalation that Putin will use as a reason to shoot back...