The center for galatic government for as long as sentients have bothered to keep records. Solid city from pole to pole, except for the polar ice caps. Buildings are intersected by canyons kilometers deep. Liberated by the Rebel Alliance three years after the Battle of Endor with the help of Rogue Squadron, lead by Wedge Antillies, on a covert mission to undermine the planet's defenses. After its liberation, it became the seet of the New Republic's government.