Project Erinyes

was a secretive project devised by the United Nations Space Command in the final years of the Human-Covenant War, designed to defend human worlds against Covenant incursion. While development was never finished in time for Earth's defence, the results of Project: Erinyes would go on to protect Earth, Arcturus, Mannheim, Twilight, and other important worlds in the years after, serving admirably during the Storm Insurgency, Remnant war, and other conflicts.