Quote History Quoted:
The Soviets stopped outside of Warsaw to let the Nazis take care of the armed Jews. They at no point wanted to deal with that themselves.
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Actually the Jews revolted in 1943.
The revolt in 44 in which you refer were Poles and yes Stalin ordered the army to stand down and watch as 2 Polish SS divisions butchered women and children
The Polish SS colonel in charge bragged to a German Field Marshall about his exploits and was tried and hanged for war crimes, a rare thing then
The regular German army finished the revolt again as Soviets watched Stalin saying the less Poles the better.
When the USAAF showed up to bomb the Germans Soviet AA opened up on them