The Chaykin Cluster, situated within the Chaykin sector of the Expansion Region, was a star cluster that encompassed the Corbantis system.
In the era of the Clone Wars, its location placed it on the fringes of the territories controlled by the Separatist faction.
Originally assigned to patrol the Corellian sector, the Republic Assault Ship known as Prosecutor underwent a dramatic change when Trandoshans seized control of the vessel and initiated a hyperspace jump to the Corbantis system, nestled inside the cluster, with the intention of meeting a Lucrehulk-class Droid Control Ship. Subsequently, Delta Squad was dispatched to investigate, culminating in the elimination of all hostile enemy combatants.