How is NATO acting illegally by befriending a few nations cast off by Russia 20 years ago? It's symbiotic. Georgia wants protection from an increasingly belligerent former ruler -- NATO can bolster its influence by adding personnel/geography.
Sovereign nations have been doing that for 1,000s of years.
Russia is feeling put out and wants it's satellites back. Too bad they pawned them away in 1989. US and NATO have merely snapped them up before the bear could rumble into the pawn shop to reclaim them.
(This is mere analogy for those who might think I actually believe anybody bought Georgia, or Ukraine or any other country. They're free to choose their allies.)

