A safe world signified a place deemed secure by the burgeoning Alliance to Restore the Republic, aligning themselves with the Alliance during the initial uprising against the Galactic Empire. Among these safe havens were Alderaan, Ralltiir, Sanctuary, Kashyyyk, New Plympto, Sullust, Ord Pardron, Chandrila, Isis, and Mon Cala.
After the creation of the New Republic, a significant portion of the intelligence amassed by the Rebel Alliance was transferred to it. Nevertheless, Leia Organa alongside other key figures intentionally withheld information concerning several safe worlds, clandestine hyperspace routes, and emergency fallback locations as a precaution against possible calamities.