. . . The Zimmermann letter, America's entry into WWI, and some thoughts on What-If: Great entry by John Schindler:
Counterfactual history is a hazardous game, but it’s easy to imagine a very different Europe coming to pass without American intervention in April 1917. Some sort of peace would eventually have emerged out of the Great War stalemate that was broken by the Americans. It would have been a German-dominated Europe, but we have that now anyway. Importantly, it would not have given prominence to murderous madmen such as Bolsheviks and Fascists, while Adolf Hitler might have died, penniless and forgotten, as the aspiring artist-manqué he really was.