The Kessel Redoubt was an isolated, highly fortified patch of Imperial territory in the Outer Rim during the Post-Endor Imperial power struggle and subsequent years of the Galactic Civil War. During the high days of the Empire's reign, the Redoubt did not exist; all of the territory fell under the authority of Grand Moff Tarkin, governor of the Outer Rim Territories. However, after the Battle of Endor, much of the surrounding territory was lost to feuding warlords and incursions by the New Republic, or the worlds had simply overthrown their Imperial masters. From SW1ki, a Wikia wiki.