|There is more information available on this subject at Mare Erythraeum on the English Wikipedia.|
Mare Erythraeum is a region on Mars.
- Main article: Battle of Mare Erythraeum
In 2552, it was the site of a battle where the UNSC commanded by Colonel James Ackerson fought against the Covenant Fleet of Furious Redemption. It is unknown whether the UNSC or Covenant won the battle, but James Ackerson of the UNSC Army was taken prisoner by the Brute forces.