Alternate Fall of Austria-Hungary-Croatia
In this universe, Franz Joseph heeded the warning unrest of the Slavs and gave them a third entity, they still lose the war and lose a lot of land, but the international community gives the break up another perspective, shown on this map. This is how the Triunate Empire would look like, to look at the results in bolded lines, search Alternate Fall of Austria-Hungary-Croatia New Borders 1918.
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