Sardis

Sardis was a UEG colony located within the Inner Colonies, and part of the MacDougall 14 star system. A relatively small planet, measuring less than 3,000 kilometers in diameter, construction space on Sardis became hotly contested in the first few decades of its existence. Due to the lack of space, Sardis became one of the first colonies to heavily utilize arcologies, bunching them up together to form the planet's cities. While this method proved both efficient and popular with colonists, only particularly small colonies would utilize this system until after the.

After the, Sardis briefly came under attack by a small Covenant raiding force, inflicting heavy casualties on the planet's civilian population; however, the attack was called off after a week long siege by the himself in order to reinforce his fleet currently assaulting Earth. After the war, Sardis became a major location for the resettlement of refugees displaced by the war, as well as a hub for efforts to recolonize local human worlds. Part of that involved terraforming the other planets in the system, a process that was well underway when the arrived to impose the Mantle of Responsibility on the galaxy. As part of their efforts to showcase their benevolent intentions, the A.I. utilized Forerunner technology to speed up the pace of terraforming, shorting the time from decades to mere years.