Ishtari
Not much is left to be known about the mysterious alien species. The little intel the TIE Corps has received about the Ishtari is that they are a insectoid species that operated in a sort of hive culture that has been raiding systems in the Unknown Regions near G'Rho and Zaadja. As of 32 ABY, thanks to the efforts of the TC, the Ishtari species has been neutralized.
TIE Corps Encounters
Battle of Tusorix
The First Recon Division encountered the Ishtari for the first time near the planet Tusorix in 30 ABY during Raise the Flag 2021. The TC was taking shore leave on the beach-covered planet when the aliens attacked the fleet by surprise, forcing the pilots on the planet to rush back to defend their ships.
After beating back the Ishtari back from the planet, the TC gave chase. They quickly found out that the enemy fighters were weak, barely able to stand up to a single laser, but were replaced instantly by numerous reinforcements.
Hunting the Hunters
The First Recon Division decided to chase down the Ishtari, who they learned had been raiding local systems for food and supplies. Splitting up the Dark Brotherhood and the individual Battlegroups split up to investigate the possible destinations of the bugs escape for Raise the Flag 2022. The results of the scouting mission pointed them to the bug's home system. Grand Admiral Rapier decided to bring order and stability to the region by moving the fleet to fight the bugs for one last time.
On the Offensive
The TC forces arrived at the Assurian Halo to free the planets from the insectoids control and hopefully destroy them for good in Imperial Storm V. After a month long campaign full of small battles that slowly chipped away at both the TC and Ishtari forces, the TC was able to push into the core planets of the system. Vicious fighting lasted until the last day, where the TIE Corps eventually proved triumphant.
Ishtari Neutralized
The fighting in the Ishtari home system had heavily damaged the vast majority of the TIE Corps' fleet. Every ship had been forced to return to the dockyard at Tusorix for repairs, with the exception of the ISDII Warrior. The Warrior was assigned to guard the dockyard while repairs took place. Extensive scouting missions revealed no sign of the Ishtari and there were no reports from locals. As of 32 ABY (05 30 2023), the Ishtari have been declared extinct.