The Atlas Moons, as their name suggests, were the moons of the UNSC colony Atlas.
During the Human-Covenant war, these moons were a major part of the Siege of the Atlas Moons. The UNSC forces fought the Covenant on the moons. After a short battle, the UNSC forces, commanded by Whitcomb, won on ground and in space, forcing the Covenant to retreat[1].
Sources
- ^ Halo: First Strike page 179: "John had never worked with the Admiral before, but his accomplishments during the battles for New Constantinople and the Siege of the Atlas Moons were well known."