The Atrivis Sector Force is what the Atrivis Resistance Group became known as once it became part of the Alliance to Restore the Republic in the era of the Galactic Civil War. This renaming signified the unit's formal recognition as a Sector Force, placing it under the operational control of the Alliance's Sector Command.
Subsequently, it underwent restructuring and became a Sector Fleet within the New Republic. Generis served as the primary location for the majority of the fleet's supply depots. These depots were lost amidst the events of the Thrawn campaign.