> But already unable to defend itself from Russia, EU countries

I'm sorry, but this is just crazy talk. Russia cannot enforce its will on Ukraine, one of the poorest and most corrupt countries in Europe, with a (at time of invasion) relatively small and underequipped army. Yes it has grown through conscription, has been equipped by foreign and domestic supplies, has made some brilliant advances in tech and tactics... but when it was attacked, it was weak. And Russia lost its best troops and equipment failing to defat that.

Why would anyone think that the Russia that cannot defeat Ukraine would fare better against Poland? Let alone French warning strike nukes, or French, British, German troops and planes and what not.