Grez Squadron comprised Y-wing starfighters belonging to the Rebel Alliance. This squadron initiated their mission from the Nebulon-B2 frigate named Colada, engaging in combat during an assault by the Imperial II-class Star Destroyer _Rage_ on a supply platform owned by Airam within the Goff system.
Similar to the strategy employed by Azul Squadron, Grez Squadron designated the Interdictor Compellor as their main objective, launching volleys of proton torpedoes against it. The Imperial forces, aware of the incoming threat and spearheaded by Avenger Squadron's upgraded TIE/IN interceptors, swiftly eliminated the slower Y-wings, preventing the destruction of the Compellor.