During several Great Schisms dissident Jedi broke away from the Order, leading to several wars including the Hundred-Year Darkness, after which the fallen Jedi fled, and founded the Sith Empire. The Sith were eventually found by the Republic and their discovery led to the Great Hyperspace War and a Sith invasion of Coruscant. The Jedi on Coruscant, led by Jedi Guardian Anavus Svag and Jedi Grand Master Memit Nadill, successfully defended the planet and defeated the Sith. Their dark side brethren wouldn't stay defeated for long, however, and during the next several thousand years many wars would be fought. A millennium after the Great Sith War, the Mandalorians saw their chance and attacked the weakened Republic. After the war the Jedi that had led the Republic's military, Revan and Alek Sq