The Battle of Rhommamool was a battle of the Jedi Civil War, a conflict between the Galactic Republic and Darth Revan's Sith Empire. The Sith advanced from their holdings near the Allanteen system down the Corellian Run to Rhommamool. There, the two sides fought with the Republic emerging as the victors.
Behind the scenes
The Battle of Rhommamool makes its only appearance in The Essential Atlas. An exact date is not provided for the battle, and it only illustrates the battle on the galactic map rather than in prose.