Zaarin's fleet was a fleet of former Imperial Navy warships that acted as rogue Grand Admiral Demetrius Zaarin's government military. Originally, it was a unit of the Galactic Empire's Imperial Military, but joined Zaarin after his betrayal and fought in his insurrection. They engaged loyalist Imperial forces, most notably those of Thrawn and Darth Vader. His fleet had a technological advantage, as Zaarin led research into new TIE Series fighters. Despite their advantage, the fleet was ultimately defeated.