anyhow... if i was the polish leader i would ignore the statement and see what russia does, if they nuke poland, it's their problem, however every single country who is against russia and including nato for russia nuking innocent civvies just because of some american defense, isn't worth nuking and mass genocide will be on Russia's hands. russia will be attacked from many sides in a war they can not win not matter how much land they have, unless they are all bark but no bite.
besides, russia should not be meddling in internal affairs of another country.
look at it like this, if many nukes explode on the planet, russia would not be able to live longer then 30-50 years before they die out because of a nuclear winter and nuclear fall out. so i do not think they are that stupid.