No rise of Hitler, potentially no rise of the Soviet Union.
Of course, who knows what would have happened if they had won/hostilities ceased in Europe. But the results of the WWI with Germany losing sure led to a lot of bad stuff.
Frankly, what was the difference between Germany, France and Britain then? None of them were saints. Why was it the US business? And don’t bring up the Zimmerman Note. Germany had no presence in the Americas, unlike Britain and France.
“But the results of the WWI with Germany losing sure led to a lot of bad stuff.”
And if Germany hadn’t been punished so much after WWI, Hitler may not have rose to power.
It is pretty amazing how we (USA, Brits, France, etc.) were able to deal with Germany and Japan after the war and we now have good relations. The Soviet way of dealing with the aftermath sucked.