Diblen Harleys was a Human male from the planet Coruscant. The son of an Imperial bureaucrat, Harleys grew up believing that the Galactic Empire stood for order and justice, so he wanted to join the Imperial Survey Corps. Following the death of his mother around his fifteenth birthday, his father revealed the true nature of the Empire to him, explaining that a career in the Imperial Survey Corps would result only in the discovery of worlds that the Empire could exploit. Angry at being lied to all his life, Harleys joined the Alliance to Restore the Republic, serving in the capacity of a starfighter pilot and tactician. Harleys's tactics later proved effective during the Battle of Endor in 4 ABY, when he assisted in the Alliance victory over the Empire. By 9 ABY, during the Thrawn Crisis—a