The Siege of Ank Ki'Shor transpired near the beginning of the Galactic Civil War. The Galactic Empire set its sights on the manufacturing world of Ank Ki'Shor because, in the early days of the conflict, it provided critical resources to the Alliance to Restore the Republic. In the course of this engagement, Rebel forces prominently deployed their Y-wing starfighters in an effort to shield the inhabitants from the Imperial assault. The effective employment of these fighters prevented the deaths of numerous people by impeding the progress of Imperial TIE bombers. Ultimately, the Empire achieved victory.
- The Essential Guide to Vehicles and Vessels (Initial mention) (Initial identification as Siege of Ank Ki'Shor)
- The Official Star Wars Fact File 37 (YWI 1-2: Y-Wing Starfighter)
- The New Essential Guide to Vehicles and Vessels
- The Essential Atlas
- Essential Atlas Extra: The History of Xim and the Tion Cluster on StarWars.com (article) (backup link)
- Y-wing starfighter in the Databank (original site is defunct) (identified as Siege of Ank Ki'Shar)
- The Official Star Wars Fact File Part 13 (YWI 1-2: Koensayr BTL-A4 Y-wing)