Seems the original question posted has been deleted.
The historical division of Poland typically happens in a West First, assuming Poland is conquered by the Axis and the N-S Pact is still in effect.
It cannot happen in an East First unless Area Seized is used to cede Eastern Poland before war is declared on the Soviet faction (ending the N-S Pact).
Yeah I deleted it because I realized the information I was missing was in the Country Conqured segement. I was looking in the wrong place.