What’s the difference between David Irving and this guy?
Jacek Leociak, a historian with the Polish Center for Holocaust Research, said it was difficult to establish exactly how many Jews were killed by Poles during the war but that the number was significant. He said Gross’s comparison could be correct if speaking about Germans killed by Polish underground forces in occupied Poland, and not the Polish army fighting on the western and eastern fronts. “The claim that Poles killed more Jews than Germans could be really right – and this is shocking news for the traditional thinking about Polish heroism during the war,” Leociak said. He said Gross’s comparison had merit because it “reveals this dimension of the Polish war experience which was always covered, hidden and suppressed”.
The mentioned armies were under the Allies command. Other Poles acted either on their own or in command of the Nazi occupation force. I wonder which of the two were the Poles whom Gross accuses of killing the Jews.
But the Nazi rountinely used local collaborators for mass killings in all the occupied countries. Probably the mentioned Poles are those people.