Batonn insurgency

"Civilian casualties outnumbered the insurgents at the time.''" "''Acceptable margins, Agent Kallus, for there are no longer rebels in that sector."

- ISB Agent Kallus and Governor Arihnda Pryce

A battle took place at Batonn sometime before the mission to Reklam Station. Thrawn was victorious in this battle which led to the Emperor promoting him to Grand Admiral.

The battle
The battle of Batonn was waged by the Galactic Empire against insurgents who operated within that sector. Admiral Thrawn commanded the Imperial forces and emerged victorious against the rebels. During the battle, the number of civilian casualties was greater than the number of insurgents, though the Empire considered these margins acceptable as it eliminated the rebel threat in the sector.

Aftermath
"The Emperor recently promoted me after my victory at Batonn."

- Grand Admiral Thrawn

In recognition of his victory at Batonn, Thrawn was promoted to Grand Admiral by the Emperor, Darth Sidious. Soon thereafter, he and the Seventh Fleet that he commanded were tasked with eliminating rebel threat in the Lothal sector.