An implicit threat to Poland.
That’s why I’ve been saying that Belarus is an even bigger concern than Ukraine.
Despite appearances, Lukashenko and Putin are not that close, and Lukashenko has always been worried about the Russians taking over Belarus.
And certainly if the situation there deteriorates, the Russians would probably move in.
Used offensively, Russian nukes would ruin your day equally well, no matter where they were launched from. Speaking of which, I have been assured by two Ukraine patriots here that even a single Russian nuke being detonated (purposely or accidentally) near Ukraine would result in the automatic launch of the entire US & NATO nuclear arsenals within 2 minutes. (My guess is they didn't realize they were basically describing the "doomsday device" from Dr. Strangelove - or maybe they did realize it, and were just willing to kill everything & everybody over Ukraine! ;^)
They are defensive weapons.