” FDR and Churchill did not turn over leadership of the war effort to Stalin.’
Hitler’s air war against England was stalemated; he didn’t have the naval resources to invade across the channel, the bombing of London accomplished nothing.
Both the bombing of London and Germany’s attack of the USSR happened a year before Pearl Harbor. The brunt of the war was taken by the Russians before the US even came in.
Leadership of the war is time dependent at best. I don’t recall Soviet troops ever coming under allied command.
No, Stalin would never have permitted that. And, I do not blame him for that. Similarly, the Western world did not then and will not now place western troops under Russian command.
But, that does not mean that we cannot coordinate our efforts to defeat ISIS. We should. However, we will necessarily remain at arms length because Russia has allied itself with Iran and Assad. We cannot expect the Western world to become too cozy too soon with either Iran or Assad. But, over time, who knows? Maybe there will be a new relationship develop with iran. The Iranian people do not seem hostile to us.