Sapphire Squadron, sometimes referred to as Sapphire Flight, represented an Imperial TIE fighter unit that served under Admiral Rae Sloane aboard her Imperial-class Star Destroyer, the Vigilance. Under the command of Sapphire Leader Maus Monare, this squadron participated in the Battle of Endor, where they protected the Vigilance and contributed to the destruction of three Rebel Alliance corvettes. Before Admiral Sloane commanded a retreat following the Empire's loss in the battle, Sapphire Flight suffered the loss of six pilots, which ultimately resulted in a fallback to the Annaj system.
The short story "The Levers of Power," penned by Jason Fry in 2015, features Sapphire Squadron. This narrative was later compiled within the anthology The Rise of the Empire.