[smm2000]

Russia definitely did not promise to help out with Warsaw uprising and actively discouraged it. Uprising was a coup by Polish leaders to liberate Warsaw before Russian army arrives to be in a better negotiating position after the end of war. Soviet Union was under no obligation to help anti-soviet elements to fight Germans - enemy of my enemy is my friend is true only up to the point.

[stephenhuey]

I don't know that you can back up your first sentence. I'm pretty sure the museum in Warsaw claims that they did plan to work together. Also, the museum shows part of a TV show from after the war which served as Soviet propaganda. The TV show rewrote history to say the Soviets fought alongside them. My Polish friend is in his mid-30s like me and explained how they were still showing this old TV program when he was a child in the 80s. Now he knows it was a lie.