The Imperial Fourth Attack Squadron was a capital ship squadron of the Imperial Navy, composed almost entirely of Victory-class Star Destroyers. The squadron was defeated during the Battle of Denab, early in the Galactic Civil War, prior to the Battle of Yavin. The Star Destroyers were methodically eliminated one-by-one by Rebel Alliance starfighters, exposing the weaknesses of the Victory-class's slow sublight speed.
- Star Wars: Rebellion (First mentioned)
- The Star Wars Sourcebook
- Star Wars Sourcebook, Second Edition
- Secrets of the Sisar Run
- The Complete Star Wars Encyclopedia