The Sangheili (Latin Macto Cognatus  meaning "I glorify my kin") (Second Human Empire: Aiooi'kiu Erui'uui) are a saurian species of strong, proud, and intelligent warriors, as well as skilled combat tacticians. The Sangheili are named after their home planet, Sanghelios. They are known to humans as Elites. Due to their skill in combat, the Sangheili have formed the military backbone of the Covenant for almost the entirety of its existence. Most started to side with the Alliance of Nations (united under the banner of the United Alliances of Orion Species), however, a few stayed loyal to the Covenant Empire.