Yeah, thanks for the save, Russia:

> The Uprising started when the Red Army appeared on the city's doorstep, and the Poles in Warsaw were counting on Soviet front capturing or forwarding beyond the city in a matter of days. This basic scenario of an uprising against the Germans, launched a few days before the arrival of Allied forces, played out successfully in a number of European capitals, such as Paris and Prague. However, despite easy capture of area south-east of Warsaw barely 10 kilometres (6.2 miles) from the city centre and holding these positions for about 40 days, the Soviets did not extend any effective aid to the resistance within Warsaw.

https://en.wikipedia.org/wiki/Warsaw_Uprising#Soviet_stance

I think you confused saving with conquering.