Are we going by the regions having allies?
If so, would the combined might of the Alolan, Unovan, and Kalos alliance be able to break the Kanto/Johto, Sinnoh and Hoenn powers?
inb4 Unova steps in at the last second to deal a killing blow and they claim that they won the war alone for the next hundred years
>>30422025not to mention how many are world ending monsters.
nah, what would probably happen is that a third party that's Hoopa would aggro and summon a bunch of other Legends to wreck shit enough to keep the world intact from further human harm