Okay, before some of you guys start yelling "ASB!!!", I'd like to note that this is supposed to be a hypothetical/theoritical scenario, not a realistic one.
In 1914, when various world's great powers start declaring war on each other, the United States decides to completely stay out of the war. But nonetheless, it also starts mobilizing and drafting, just in case. The United States keeps refusing to accept either the Entente's or CP's invitation to enter the war on their behalf. Meanwhile, this WWI proceeds pretty much in the similar way as OTL: Japan and Italy are on Entente's side; the Western and Eastern fronts are pretty much stalemate, while the CP was pushed back on the Pacific, African, and Middle Eastern fronts.
Now, what if, after years of mobilizations and observing the Entente and CP bled each other, the United States decides that they have been weakened enough, and declare war on both?
(by "both", I mean all of them: Britain, France, Russia, Germany, Austria-Hungary, Ottoman Empire, Japan, and Italy)
Let's say this is happening in 1919 or 1920, when either Entente and CP have been repeatedly failed to make a major breakthrough, and facing economic and societal collapse back home, as well as military mutinies everywhere, agree to declare a ceasefire.
Will the United States win?
In 1914, when various world's great powers start declaring war on each other, the United States decides to completely stay out of the war. But nonetheless, it also starts mobilizing and drafting, just in case. The United States keeps refusing to accept either the Entente's or CP's invitation to enter the war on their behalf. Meanwhile, this WWI proceeds pretty much in the similar way as OTL: Japan and Italy are on Entente's side; the Western and Eastern fronts are pretty much stalemate, while the CP was pushed back on the Pacific, African, and Middle Eastern fronts.
Now, what if, after years of mobilizations and observing the Entente and CP bled each other, the United States decides that they have been weakened enough, and declare war on both?
(by "both", I mean all of them: Britain, France, Russia, Germany, Austria-Hungary, Ottoman Empire, Japan, and Italy)
Let's say this is happening in 1919 or 1920, when either Entente and CP have been repeatedly failed to make a major breakthrough, and facing economic and societal collapse back home, as well as military mutinies everywhere, agree to declare a ceasefire.
Will the United States win?