This depends on which answer you want to choose but most historians would argue that Patton's desire to go to war with the Soviet Union at the end of World War 2 would have been a huge mistake. The Red Army had millions of soldiers in Eastern Europe. They were battle tested in the kind of warfare that would require so many soldiers. The Allies had succeeded against the Germans but did so with air superiority and against far fewer German troops than the Soviets faced. The Soviets had gained air superiority over the German Luftwaffe. There were few targets to hit on the Russian side as most cities had been flattened. The forms of government would also have played an important role. No western democracy would have put up with the mass casualties the Soviet Union endured against the Nazis when they threw their men into well defended German lines with little regard for human life. It's far more likely to image the Soviet Union tolerating high casualties in such a conflict with the American public desiring a peace treaty after years of fighting in World War 2.