Mad_Jack
Legend
I have a homebrew setting with an evil empire inspired mainly by Rome. In this setting, the Dragonborn were created as shock toops for the empire, and when they retire they get their own little plot of land. So there are little communites of dragonborn in client kingdoms who are ostensibly loyal to the empire. But you know, after a few centuries of being their own community, loyalties tend to drift.
A similar thing happened to the Old Empire in the world where I'm setting my Dungeon23 project - long ago at its height the Empire used to span the eastern half the continent, but the majority of the army was of a different ethnic/religious group than the nobility and it didn't take very long from a historical perspective before the "provinces" came under new management, lol.
(Ironically, those former provinces (currently known as the "Eastern Kingdoms") would themselves later make almost the same bad decision with their own colonies (now known as the "Western Kingdoms"), splitting the continent up roughly into thirds...)