[Dilbert San Diego]

I think your timeline is off a bit.

The Warsaw Ghetto uprising was April 1943. The Soviets didn’t liberate Warsaw and advance through Poland until early 1945. So the Soviets were not in Warsaw in April 1943 to wait for the Germans to eliminate the ghetto.

[dfwgator]

1943 - Warsaw Ghetto Uprising
1944 - Warsaw Uprising