Married a Pole and let me tell you, these guys do NOT want to get into a test of wills with them.
As one who is part Polish, on my late father’s side, and for that matter, anyone who is either full or part of Slavic heritage, be it Polish, Russian, etc., we can be very friendly folks, but do not get such a person ANGRY because you will end up in a NASTY FIGHT. Just ask thoe ISIS terrorists who bombed that Russian plane. Look for Putin to take ISIS OUT.
Slavics are used to invasions and fighting off hordes.
DO NOT TEST THEM.
I come from Russian blood, in part. I do not bend. I do not break. I destroy.
What I was thinking, considering the Polish pilots who flew for the RAF and other instances of resistance (Solidarity, for one) which eventually rolled back the Iron Curtain. People might make light of their cavalry attacking armor in the opening days of WWII, but they fought an unprecedented style of warfare with what they had, and that took guts, too.