[Source] The Cassander sector was located in the Outer Rim Territories. Shortly before the Battle of Endor, it was annexed by the Galactic Empire, which divided it into three subsectors, known collectively as the Cassandran sectors. These subsectors were the Cassander, Tadrin and Tendrannan subsectors. Throughout the Clone Wars, the sector was located within Separatist space. During the Outer Rim Sieges of the Clone Wars, Jedi General Traavis led a campaign in these sectors.