The Battle of Roche represents one of the initial engagements during the Jedi Civil War. This war pitted the Galactic Republic against the Sith Empire led by Darth Revan. This particular battle unfolded after the sacking of Foerost, as the expanding Sith Empire initiated new conflicts throughout the galaxy. The Sith forces moved onto Roche, successfully seizing control of the planet. During the Sith Empire's peak, Roche was maintained as a territory under their dominion.
The Essential Atlas is the sole source in which the Battle of Roche is depicted. A specific date for this battle is not given. However, the Knights of the Old Republic Campaign Guide situates the Battle of Foerost in 3958 BBY.