The Atlas Moons, as their name suggests, were the moons of the UEG colony Atlas.

During the Human-Covenant war, these moons were the sight of the Siege of the Atlas Moons, where UNSC forces fought the Covenant throughout the territory. After a short battle, the UNSC forces, commanded by Vice Admiral Danforth Whitcomb, won on ground and in space, forcing the Covenant to retreat.[1]


  1. 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."