- "After the Sith offensive seized the Seswenna sector of the Outer Rim, the Imperial armada tuned its sights closer to the Core. The Mid Rim."
- ―Jedi Master Gnost-Dural
In 3,671 BBY, during the Great Galactic War between the Old Republic and resurgent Sith Empire, the Seswenna sector in the Outer Rim Territories was seized by Sith forces. This military operation finalized the Imperial conquest of the Outer Rim and allowed for the Sith Emperor to initiate plans for an attack on the Mid Rim, specifically the Republic-allied world of Bothawui.
- "When the Emperor planned the Republic's destruction, he did not foresee the need for alliances. The Sith would sweep through the galaxy, systematically exterminating their age-old Jedi enemies and dismantling the proud Republic."
When the once-decimated Sith Empire returned to the galaxy and initiated the Great Galactic War, it focused its operations in the Outer Rim Territories—a region weak in both Galactic Republic loyalty and defense priority. The Sith Emperor was highly successful in his campaigns in the region and quickly claimed victory in the Aparo sector, the Sluis sector, the Rimma Trade Route, and the entirety of the Tingel Arm, among other territories.
While Republic leaders remained incapable of deciding a proper response to the Empire's attacks, the Sith Emperor finalized his conquest of the Outer Rim in a successful seizure of the Seswenna sector in 3,671 BBY.
- "Believing the Republic was still recovering from its heavy losses, Imperial forces charged into Bothan Space, where they were caught off guard by the full force of the Republic fleet."
- ―Jedi Master Gnost-Dural
The capture of the Seswenna sector marked a turning point in the war. Confident that the Outer Rim was no longer in need of the undivided attention of his military, the Emperor began plans for an incursion into the Mid Rim—one step closer to the Core Worlds of the Galactic Republic. This first attempt on the world of Bothawui met with failure, but the Emperor would attempt another attack shortly thereafter. Sometime after the signing of the Treaty of Coruscant, which ended the war, Jedi Master Gnost-Dural made mention of the capture of the Seswenna sector in a holorecord for the Jedi Archives.
Behind the scenes
The Sith Empire's seizure of the Seswenna sector was first mentioned in the fifth installment of the Galactic Timeline, entitled The Battle of Bothawui. The Galactic Timeline is an online promotional feature for the upcoming video game Star Wars: The Old Republic. The installments are available through The Holonet section of the official Old Republic Web site.
- Timeline 5: The Battle of Bothawui (First mentioned)