Subjugation of Sanghelios

The subjugation of Sanghelios was an attempt by the newly-formed alliance of artificial intelligence constructs known as the Created to take control of Sanghelios, the homeworld of the Sangheili on October 28, 2558.

Civil war
In the October of 2558, Sanghelios had fallen into global conflict.

Genesis
At the same time, Guardian Custodes were gathered to the Forerunner world of Genesis along with both Blue Team and eventually Fireteam Osiris. Cortana would then issue an ultimatum to the galaxy and began to send the assembled Guardians out.

Guardian attack
Following Cortana's ultimatum, a Guardian arrived at Sanghelios. This Guardian proceeded to fire upon the remaining fleet of Jul 'Mdama's Covenant with it's more conventional weaponry. It then fired its attenuation pulse and shut power down to the hemisphere. It was believed by Sarah Palmer that some of the Covenant's fleet survived both initial events, later into the night.

As everything was happening on Sanghelios, the was further out in the Urs system. The Infinity would jump to Earth, only to be tracked and witness Earth being attacked.

Having survived these events and succeeded at Sunaion, the Swords of Sanghelios would return to Nuusra and set-up camp.

UNSC regrouping
"Took you long enough."

- Halsey to John-117 and Jameson Locke.

Following this, Blue Team and Fireteam Osiris returned to the planet from Genesis. They found the planet largely blacked out. They travelled down the coast of Nuusra as before finding the encampment of Swords of Sanghelios. After landing, the two groups stay the night at the camp and celebrate the defeat of the Covenant.

Meanwhile, the Guardian had moved on to a different part of Sanghelios.

The next day, UNSC forces would rendezvous with the UNSC Infinity on the farside of Suban before they all would depart. It was believed the Guardian was still at Sanghelios at the time.

Sanghelios' moons
Suban was considered a low priority for Cortana during these events. As well, the loss of communication and logistics infrastructure dampened coordination between those creating an independence movement on Qikost.

Occupation
The Created would eventually take total control of Sanghelios. By 2559 all keephold forces were disarmed and disbanded, a Created administrator was placed in charge of the world, and Armigers would be the planet's central security force.

List of appearances

 * Halo: Bad Blood
 * Halo: Outcasts