The expansive Blair Cluster, a significant asteroid field, existed within the Airam sector of the Outer Rim in the galaxy.
Admiral Wooyou Senn's Task Force Vengeance initiated its pacification campaign by targeting the Blair Cluster. Imperial troops established a blockade with the intention of ensnaring any transport ships moving through the area. The Interdictor cruiser Compellor utilized its gravity well generators to generate a mass shadow, compelling ships to exit hyperspace and simultaneously preventing any potential escapes. Avenger Squadron, flying enhanced TIE/IN interceptors launched from the Imperial-class Star Destroyer Rage, pursued and pressured the targeted transports and shuttles to yield.