During the final stages of a successful raid on the sector headquarters of the Imperial Navy located on Vladet, Warden Squadron, using targeting data provided by Corran Horn of Rogue Squadron, destroyed the Lancer-class frigate Ravager. The unit would later participate in the taking of Yag-prime during the crisis surrounding the release of the Krytos virus. At some point later in the Galactic Civil War, Guardian Squadron's Y-wings were updated to BTL-S8 K-wing assault starfighters.