In the arid, mountainous region of Aszod resides one of Reach's many ship-breaking facilities, an immense complex which disassembles, scraps, and recycles the mangled remnants of the UNSC's vast naval fleets. During the Covenant's invasion, it's rumored that the UNSC Pillar of Autumn executed a Class-L flash-dock, a restricted atmospheric maneuver for a ship of that size, in order to swiftly procure an asset significant to the war effort.