Assuming the Reich is victorious and rules an empire spanning from the Atlantic to the Volga, how would the Soviet invasion of Poland be remembered? How would the Nazis, the Soviet rump, the UK and US, the Poles in occupied Poland, and the Poles who made it abroad view the invasion? How would the deportations of ethnic Poles be remembered? Would the truth about the massacres of Polish POWs at Katyn and elsewhere ever be revealed, or would the mass killings be viewed as Nazi propaganda?