[AnAmericanAbroad]

Most likely. Would the Poles do that without consulting NATO command first, I wonder? I mean, sure, it's their national border. But I'd think - and I could be mistaken in this - that they'd at least leave a voicemail saying, "Hey, we're moving some armor to our frontier with Ukraine."

[dfwgator]

The Allies weren’t thrilled with the Warsaw Uprising, but they did it anyway.

Remember the movie “The Battle of Britain”...........”Repeat, Please?”

That’s the Poles for you.

[RitchieAprile]

Poles have a lot of shared history with Ukrainians, not much of it pleasant.