Poland by itself right now would give the Russians a very bloody nose - and they are part of NATO, with many NATO troops already based there. Also, we just sold Poland 250 Abrams tanks, with delivery starting this year and final delivery next year. By the time Russia is able to “pocket” Ukraine, the Poles will be well-trained in their use. Unlike Ukraine, it has a capable Air Force.
Putin isn’t going after Poland, even if he has delusions about recreating the Czarist Empire or the USSR (and I am not buying into the media-driven nonsense that he is “crazy”).
Delivery starting this year?
So if Puting rolls up Ukraine by Spring he can roll right into Poland and seize all that nice new US made gear the Poles haven’t had time to learn to use yet...
And NATO is a toothless tiger.