I agree some sort of Pact communications & supply sites had to be the target(s) of the 5 MD and 8 MD "raids". A PW camp would be a good one, too.
I've already posted (years ago) my idea that the Polish Free Legions and their allies in NATO high command sold the idea that the Polish armies would collapse or defect, given a large enough NATO push in 2000. That they didn't could be treachery or wishful thinking or a plot of some sort: I leave that to a GM
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Deep raids could be a vital part of such a show of force