We must not forget all the great contributions Poland made to WW2. From cracking the Enigma to helping to save the British skies to inventing new tank periscopes. While overrun from day one their government and military were still in action at Germany's surrender. Argubably Churchill could presevere because of their brave example. All the more reason why poland should be in civ i guess. HRE wasn't even good enough to last till WW2.