The Great Galactic War, was a galaxy-wide conflict between the Sith Empire and the Galactic Republic, having started on the year of 36,431 TYA with the Battle of Korriban. This conflict was the culmination of a 5000-year grudge held by the survivors of the old Sith Empire against both the Republic and the Jedi Order, and the desire of replacing the corrupt and decadent Galactic Republic as the dominant galactic government.