The Battle of Yag'Dhul was an early battle of the Jedi Civil War, a conflict between the Galactic Republic and Darth Revan's Sith Empire. Following the sacking of Foerost, new battlefronts opened up across the galaxy because of the advancing Sith Empire. The Sith advanced on Roche, Axxila, and Battle of Allanteen; then, the Empire and conquered Yag'Dhul. At the highest extent of the Sith Empire, the planet remained under Imperial control as part of an isolated area of Sith space.
Behind the scenes
The Battle of Yag'Dhul makes its only appearance in The Essential Atlas. An exact date is not provided for the battle. The Battle of Foerost and the Bombing of Telos IV, however, are placed in 3958 BBY by the Knights of the Old Republic Campaign Guide, and the Atlas lists Yag'Dhul as having followed Foerost and subsequent attacks, but preceding Telos.