Allied Region was a term used to designate semi-independent regions of the galaxy that were part of the Galactic Republic and later galactic governments but enjoyed a high level of autonomy.
The status of Allied Region was traditionally given to small regions whose worlds had created unified interstellar empires long before their discovery by the Galactic Republic. These territories were absorbed into the Republic freely or by force of arms during its expansion. The warlords ruling these territories who accepted to join the Republic instead of fighting were given the titles of Moff or Grand Moff. Over time, most of the Allied Regions were reorganized or divided in Republic sectors. The Ruusan Reformation eventually abolished the titles the Moffs and Grand Moffs.
A millennia later, very few Allied Regions remained after the rise of the Galactic Empire. Some had managed to hold onto their meager powers, such as the Ollonir Boundaries and the Botor Enclave. These regions became de facto Imperial client states. Most of these territories were later given a proper Allied Region status under the New Republic and the Galactic Federation of Free Alliances.
- The Essential Atlas
- Star Wars: Edge of the Empire Core Rulebook