"Before the war, what’s now the largest space traffic hub on Ilum was only a barren field of snow, ice and crystal. With the Empire’s return, Ilum became less of a remote temple world for Jedi pilgrims and more of a Jedi holdfast against the encroaching invaders. Ilum’s unknown location and hard-to-navigate hyperspace lanes made it ideal for hiding important assets and launching sneak attacks, though its primary value was in providing lightsaber crystals for the suddenly militarized Jedi. As Ilum’s military value increased, so did the size of its landing zones. Now that the Empire has come to Ilum, the landing zone has become a fortified complex of considerable dimensions and a vital target for Imperial attacks."