The Eiattu Campaign occurred when the forces of the People's Liberation Battalion attacked the Galactic Empire's citadel on Eiattu 6. Rogue Squadron helped defeat the Imperial forces, and Princess Isplourrdacartha Estillo exposed the supposed Prince Harrandatha Estillo, leading the PLB, as an impostor working for Moff Leonia Tavira.
Several years before the Battle of Yavin, the Eiattu 6 society was shaked up by the arrival of the Galactic Empire on its world. The planet's nobles, known as the Priamsta, eventually murdered the royal family and took power on the world. The Priamsta acted as an oligarchy but found itself embroiled in a civil war against the People's Liberation Battalion led by a heir to the royal line: Prince Harrandatha Estillo.
After the Battle of Endor, the Priamsta discovered that another heiress had survived, Princess Isplourrdacartha Estillo, also known as Rogue Squadron pilot Plourr Ilo. The Rogues got a visit from Grand Duke Gror Pernon and were ordered to escort Plourr and Pernon to Eiattu.
- "I feel the Empire is not long for this system. I intend to get what I can, while I can. If Harran succeeds, I can leave this backward planet to the PLB. I have raided enough credits to do anything, go anywhere. Or, I can marry Harran, kill him, and rule poor Eiattu as his widow. Either way, I'll have what I want."
- ―Moff Leonia Tavira
After their arrival on Eiattu 6, the Rogues set out in the planet's swamps to find Prince Harran. They were ambushed by Imperial stormtroopers and saved by the People's Liberation Battalion and other Rogues in X-wings. In the capital, Plourr chose to side with Harran and officially announced her desire to remove the hypocritical noble class from power. Plourr and Count Rial Pernon were attacked by forces bearing ties to the Priamsta and Count Arian Laabann. In the swamps, several Rogues (Ibtisam, Derek Klivian, Feylis Ardele, Wes Janson, Dllr Nep, and Herian I'ngre) were captured by Moff Leonia Tavira. Plourr finally revealed to Count Pernon and Wedge Antilles that Harran cannot possibly be the true Harrandatha, because she killed Harran herself when she was a child after he had been corrupted by Darth Vader. Moff Tavira then revealed to the captive Rogues that the current Harran Estillo was really an imposter meant to take the real Harran's place in the royal family as a spy for the Empire.
While Rogue pilot Nrin Vakil infiltred the Imperial Citadel to rescue his fellows, the PLB attacked the capital with the remaining Rogues (Wedge, Plourr and Tycho Celchu) in the air. They were victorious but Tavira managed to flee with a portion of the planet treasury. Upon ending that confrontation, Plourr faced off with "Harran," finally proving that he was an impostor.
After the battle, Plourr decided to remain on Eiattu to rule with Rial. The Rogues left Eiattu with one less pilot.
- Star Wars: X-Wing Rogue Squadron: The Warrior Princess (First appearance)