Is there any way that we can get Wilson *more* listened to in the treaties ending WWI so that neither of the created multi-ethnic states that came apart in the 1990s is created? How do we get separate Czech and Slovak nations. How do we get at least 3 Nations (as many as 8?) created instead of Yugoslavia? (I can see ending up with Slovenian, Croatian and Serbian nations with Vojvodina, Bosnia being divided up among other states and Kosovo being divided up between Serbia and Albania. Macedonia (no clue))
I'm not sure on the first, but for the second, it would seem like having the Macedonia Front stay more or less stable through the end of the war which would leave the Serbians in a poorer position in the final treaties. But it seems that the success on the Macedonia front was a significant domino in the progression toward the Armistice, so I'm not sure where to go here.