Sadly, I think you're right, despite being a part of NATO. As far as Crimea, I will allow Putin that one...kind of like allowing Hitler the Rhineland...but if he makes more moves, then it will be time to do something, and of course, Poland will respond if Western Ukraine (Galicia) is threatened.
History demonstrates that Russia, NEVER conquered Poland alone, even having a vast advantage in soldiers. This is refreshing. But then again, their 1,800 fully operational nuclear warheads.. :-(