Doisac (Earth-5875)

Doisac, designated CE-75-2113 c by the forerunners, is the third planet in the Oth Sonin system and the homeworld of the jiralhanae. It has three natural satellites - Warial, Soirapt, and Teash.

History
The jiralhanae became one of the many predator species on Doisac, having evolved from tree-dwelling mammals that developed under the planet's harsh and diverse environment. During the Forerunner-Xenomorph War, the Librarian and her Lifeworkers visited Doisac as a part of the Conservation Measure to save jiralhanae specimens and index them in the Ark so they could survive the activation of the Halo Array. After the rings were lighted and all life extinct, the jiralhanae, alongside all remaining living species in the galaxy, were returned to their homeworld through keyships, where they started rebuilding their culture and civilization.

In the millennia that followed their reintroduction, the jiralhanae were able to achieve Tier 4 technology. However, their prone war-like nature and infighting led them to engage in a massive global war, where numerous master-packs fought for territorial control in what became known as the First Immolation. The war was one of attrition and was catastrophic, lasting a whole decade, leading the jiralhanae packs to use nuclear weapons that severely devastated Doisac, resulting in a nuclear holocaust. The results of the holocaust nearly led the jiralhanae to self-extinction, and while they survived, the situation was dire and their society collapsed; by the time the Covenant made first contact with the species in 2492, the jiralhanae were just rediscovering radio and rocketry. While many jiralhanae were more than eager to join the Covenant duo to a search for meaning and theology in their lives after the Immolation, such as the many persuaded by Chieftain Maccabeus, many resisted with ferocity and violence against the alien invaders. These jiralhanae were quickly slaughtered by the Covenant's war machine and those who surrendered were enslaved into the Covenant. As many searched for theology and meaning, they were quickly to accept the Path, the Great Journey and reverence for the forerunners.