On 28th September 1918, outside the French village of Marcoing during the Allied counter-offensive, a wounded German soldier, of the name Adolf Hitler, walked into the line of fire of Private Henry Tandey. Tandey said "he couldn't bring himself to shoot a wounded man" and so spared him.
Now, what if Tandey had managed to bring himself to kill Lance Corporal Hitler?
Accepting that without Hitler, it is almost certain that the Nazi party wouldn't rise to power (at the very least, not with Hitler's insane ideology), and that it would be very implausible for the Communists to take over, which political party would eventually rise to power?
Would Germany press for an Anschluss with Austria, Rhineland and Saar basin restoration, and even the Sudetenland? Would it even press for the polish corridor and the territories lost from the Treaty of Versailles (Memel, Eupen-Malmedy, Elsass-Lothringen, etc.)?
And what would the inevitable WW2 be like?