I'm talking about WWI here and the unintended consequences of US intervention there.
The US getting involved in WWI arguably extended that conflict, the action that made WWII possible, and had many drastic unintended consequences for humanity.
The very short version is this.
* During WWI, there were lots of peace overtures being pushed in Europe because a lot of people were sick of fighting. Because a lot of powerful people were hoping to drag the United States into that relative stalemate, these peace offerings were not taken as seriously as they otherwise would have been.
* Because the US's entrance tilted the scales at the end of WWI so dramatically, Allies were able to enact a little revenge in the Treaty of Versailles and impose punitive and humiliating economic and political measures. Rather than a normal, face-saving peace-treaty, Germany was punished harshly and this tilting of the scales is what led to conditions for the Nazis to take power.
* If Russia's economic and political attention wasn't directed externally at the time, it's likely the Russian Revolution would have failed and the world would have been spared a great deal of grief from Communism.
Obviously this is all alternative history speculation, but there's a strong case to be made that absolute US neutrality in WWI would have ended WWI sooner, not created the economic/social conditions that led to Nazis taking power in Germany, and Communists would have never taken root.
The US getting involved in WWI arguably extended that conflict, the action that made WWII possible, and had many drastic unintended consequences for humanity.
The very short version is this.
* During WWI, there were lots of peace overtures being pushed in Europe because a lot of people were sick of fighting. Because a lot of powerful people were hoping to drag the United States into that relative stalemate, these peace offerings were not taken as seriously as they otherwise would have been.
* Because the US's entrance tilted the scales at the end of WWI so dramatically, Allies were able to enact a little revenge in the Treaty of Versailles and impose punitive and humiliating economic and political measures. Rather than a normal, face-saving peace-treaty, Germany was punished harshly and this tilting of the scales is what led to conditions for the Nazis to take power.
* If Russia's economic and political attention wasn't directed externally at the time, it's likely the Russian Revolution would have failed and the world would have been spared a great deal of grief from Communism.
Obviously this is all alternative history speculation, but there's a strong case to be made that absolute US neutrality in WWI would have ended WWI sooner, not created the economic/social conditions that led to Nazis taking power in Germany, and Communists would have never taken root.