Battle over Korriban

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 intelligence, Republic Military leaders approved an invasion of the Horuset system with the intention of destroying the Sith Academy on Korriban and seizing from the Empire its most historically valuable world.

The battle began after Exal Kressh infiltrated Korriban and sent word of her position to the Republic Navy, which swiftly jumped into the Horuset system and began taking advantage of the defending Imperial fleet's surprise and gaps in protection. While the battle raged in orbit, Republic landing teams consisting of Jedi and soldiers assaulted the Sith academy on the surface. Using the Republic's attack as a distraction, Kressh sneaked into the tombs adjacent to the Academy with the intent to find and destroy the Children of the Emperor who were being prepared for ritual possession. Although she nearly succeeded, Kressh was interrupted by the disgraced apprentice Teneb Kel, who had been tasked by the Empire's Dark Council to hunt down and kill the rogue Sith. After an intense lightsaber duel in Korriban's tombs, Kel executed Kressh and fulfilled his mandate to protect the Emperor's works. Without the treasonous Sith providing information from within the Academy, the Republic's assault quickly crumbled and the Empire once again secured its hold over Korriban with the Emperor's secrets safe once more.

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