Aegis Squadron was a walker-eqipped squadron of the Sith Empire stationed on Ziost. In 3637 BBY former Sith Emperor Vitiate came to Ziost and possessed many of the Imperials on the planet, turning them into his puppets to murder civilians. Pilots of Aegis Squadron were among those who fell under his control and their walkers were used to wreak destruction in the area around New Adasta.