- "They took us by surprise. We were holding our own to begin with. Then the Vong pulled back. We thought we had them on the run, but they were just getting out of the way. [sic] Once they'd punched a hole in our defenses, the Yuuzhan Vong came back into the fray. We've been on the back foot ever since."
- ―Grand Admiral Gilad Pellaeon
The Battle of Bastion was the large surprise attack on the Imperial Remnant by the invading extragalactic Yuuzhan Vong. With the support of the New Jedi Order, the Remnant was able to evacuate the Imperial capital of Bastion before its near-destruction by the Yuuzhan Yong.
When Vorrik's forces instead arrived in the Bastion system, the Imperial Navy was caught completely off guard as the Yuuzhan Vong destroyed planetary defenses with ease. Despite this, the Starfleet was able to hold its own at first, until the Yuuzhan Vong pulled back. What the Remnant expected to be a retreat was soon revealed to be the launch of a swarm of thousands of grutchins.
The fleet responded to the grutchins with appalling disorganization; only Pellaeon's own Star Destroyer, the Chimaera, responded with appropriate efficiency and effectiveness on short notice. The resulting losses forced Pellaeon to order the evacuation of Bastion.
As separated elements of the fleet fought and attempted to regroup, a small Jedi expedition that included Luke and Mara Jade Skywalker, arrived aboard the Jade Shadow. After assessing the situation, they jumped toward the gas giant where a force composed of the Chimaera, the Imperial Star Destroyer Superior, and their support craft were pinned against planet's gravity mass shadow by a powerful enemy contingent. The Jedi provided Pellaeon with information on the location of the enemy's yammosk before departing for Yaga Minor.
Pellaeon dispatched TIE Fighters to deal with the yammosk carrier and then attempted to break out of the gas giant's mass shadow. The Superior was critically damaged and Pellaeon ordered its evacuation as it fell into the depths of the planet. The Chimaera had also taken considerable damage by the time a coralskipper rammed its bridge. The suicide run nearly killed Pellaeon, but a junior officer pulled the Grand Admiral from the bridge and loaded him aboard a medical frigate carrying survivors from Superior. Under the cover of wreckage from the dying Star Destroyer, and the brave sacrifices made by a dozen of the Superior's TIE Fighter pilots, the frigate was able to escape for Yaga Minor.
While caught off guard, the efforts of the Imperial Navy enabled most of Bastion's population to escape in time.
Upon arrival in the Yaga system, the shuttle's pilot, a Human male named Vitor Reige, ferried Pellaeon to the Imperial frigate Widowmaker. The Grand Admiral's life was saved due thanks to surgery from the Chadra-Fan Jedi healer Tekli. Pellaeon's survival restored the Imperial chain of command.
Despite the evacuation of their commander, the crew of the Chimaera successfully managed to retreat from Bastion and afterward limped into Yaga Minor.
- The New Jedi Order: Force Heretic I: Remnant (First appearance)
- Legacy of the Force: Revelation (Mentioned only)