Lure in some Poles or other NATO space cadets into West Ukraine and then light them up with standard 2MT
Deterrent will start working again no problem after that plus it will solve massive number of other problems long before they happen
If Poles or other HATO cannon fodder enters the conflict then nukes can be justified, because fighting Ukraine they don't need them... against all of HATO they would use them and so as HATO troops start to join the conflict it would make sense to make such a statement to prevent the rest from joining too.
Polish or any other HATO group forces killed on Ukrainian territory have no one to blame but themselves and certainly would not justify Article 5 self defence clause in the HATO bible because it is about defence and not the invasion of Ukraine.