In 3678 BBY during the Great Galactic War, the Battle over Korriban occurred in the Horuset system between the forces of the Galactic Republic and the Sith Empire. The engagement was catalyzed by the treason of the Sith apprentice Exal Kressh, who chose to betray the Empire because her former Master, the Sith Emperor, had secretly been trying to possess her body through dark sorcery and begin the formation of his "Children"—a group of sentients who were entirely beholden to the psychic will and powers of the Emperor. Hoping to use the Republic to exact revenge against the Emperor and end his plans to create more Children, Kressh leaked Imperial Military secrets pertaining to the defense of the Sith holy world of Korriban to the Jedi Order and Republic Navy. Eager to act upon the intelligen