Anything is possible in a fantasy land. 
Garlemald itself used to be an insignificant piece of rock until they discovered technology way ahead of their time and used it to usurp a large portion of Hydaelyn. So sure, it's possible. If it's likely..eh..depends. Eorzeans are rather good at infighting and it doesn't really have powerful leadership.
Or were you looking for real-world examples? Because there's plenty of those too actually.
Garlemald itself used to be an insignificant piece of rock until they discovered technology way ahead of their time and used it to usurp a large portion of Hydaelyn. So sure, it's possible. If it's likely..eh..depends. Eorzeans are rather good at infighting and it doesn't really have powerful leadership. Or were you looking for real-world examples? Because there's plenty of those too actually.
