- "The Great Galactic War dragged on for decades. Thousands of Jedi and Sith were slain. Countless star systems were ravaged."
The Great Galactic War, also known as the Great War and the Republic–Sith War, was a major conflict before the events of Star Wars: The Old Republic, three-hundred years after the events of Knights of the Old Republic and immediately before the events of the Cold War. The Sith Empire achieved many major victories over the Galactic Republic, but the final coup de grâce was the Sacking of Coruscant. Holding the planet ransom, the Sith forced the Republic to surrender twelve planetary systems to them if it wants their capital world back.