The Rachuk sector can be described as a sector situated within the confines of the Colonies region.
Within the sector, notable planets encompassed Chorax, Hensara III, and Vladet, which served as the sector's capital. Its geographical position placed it Coreward with respect to the Morobe sector.
In the period succeeding the Battle of Endor, the defense of the sector was entrusted to an Imperial Sector Fleet, under the leadership of Admiral [Devlia], who operated from Vladet.
This sector marked the location of the initial operations undertaken by the reconstituted Rogue Squadron pilots as they advanced towards Coruscant in 6 ABY. The New Republic later discontinued this approach after the Republic base situated on Talasea was discovered by Imperial forces. Ultimately, the New Republic successfully breached the Core Worlds by navigating through the Pyria system.