Precursor Star Roads are a major driving force that leads Halo to victory. [quote]One of the more common types of artifacts left behind by the Precursors, star roads were seemingly inert, virtually unbreakable cables on an immense scale that lay across the galaxy for millions of years, connecting planets and even linking entire star systems to one another [/quote] [quote]The star roads, in their weaponized form, were incredibly powerful, being capable of crushing entire planets by the tidal forces they generated as well as blocking or interfering with Forerunner slipspace travel as well as disabling their weapons and other systems. During the Forerunner-Flood war, multiple star roads were used to trap Forerunner forces that were soon overwhelmed by the Flood. [/quote]