At the end of the Great Sith War, a battle occurred on the planet Thule. With the help of former Sith Lord Ulic Qel-Droma, the Galactic Republic forces disabled the Dark Reaper, a deadly Sith superweapon, during the battle.
According to The New Essential Chronology, the Dark Reaper was unleashed on Raxus Prime, and later destroyed on the same planet.
- Star Wars: The Clone Wars: Prima's Official Strategy Guide
- The Official Star Wars Fact File107
- The New Essential Chronology
- The Complete Star Wars Encyclopedia, Vol. I
- The Essential Atlas