Trans-Jardeen sector

The Trans-Jardeen sector, situated within the Expansion Region, encompassed both the Jardeen system and the Pioku system. Within the Jardeen system was the planet known as Jardeen IV, which housed the Imperial Army training center. This center was utilized by the Galactic Empire to instruct personnel in the art of employing walkers effectively in battle. The Pioku Border Wars shared a name with the Pioku system.

By the year 0 ABY, the Trans-Jardeen sector shared borders with the Great Agash sector to its north, and the Extorin sector along with the Cantons of Lahag to its west. Furthermore, it formed a quadruple border with the Arc d'Stot, Chitarghar, and Vatha sectors towards the east, and another four-way border with the Har Worlds, the Piryn Shar sector, and the Vatha sector to the south. Not long after the Battle of Endor which occurred in 4 ABY, General Arndall Lott and Captain Iolan Gendarr of the Imperial Star Destroyer called the Reliance, who were both stationed on Jardeen IV, abandoned the planet before the New Republic forces arrived.