by putting bombs in eastern europe, you open up a political fight over every single slavic, baltic and finno-ugric speaking country, as the russians need to pull them all out of nato in order to dismantle the bombs.
expect this everywhere - poland, romania, bulgaria, finland, etc.
there's nothing else they can do. they can't bomb the places out, they can only launch soft coups via election interference to alter or manipulate policy.
what did you expect?