Sanghelios global war

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Previous:	Operation: ATHENA
Concurrent:	Battle of Kamchatka Cortana Event Battle of Genesis
Next:	Subjugation of Sanghelios Subjugation of Earth
Sanghelios global war
Conflict:	Post-Covenant War conflicts Blooding Years Created uprising
Date:	c. October 17, 2558-October 27, 2558
Location:	Sanghelios, Urs system
Outcome:	Swords of Sanghelios victory Jul 'Mdama's forces routed and considered functionally destroyed. Fireteam Osiris leaves in a Guardian.
Details Belligerents Swords of Sanghelios UNSC Jul 'Mdama's Covenant Created Commanders Arbiter Thel 'Vadam Spartan Jameson Locke General Kitun 'Arach† Cortana Warden Eternal Strength Numerous Sangheili Warships Swords of Sanghelios ground and air forces Fireteam Osiris Numerous Sangheili Warships Covenant ground and air forces Two Guardians Promethean ground and air forces Casualties Moderate Near total Heavy

A global war on the Sangheili homeworld of Sanghelios erupted in late 2558. Fighting would involve the Swords of Sanghelios, Jul 'Mdama's Covenant, minor forces of the United Nations Space Command (UNSC), and finally the newly formed Created.

Background

Preparations

Following the Covenants failure at the Absolute Record, Jul Mdama pivoted to trying to take control of Sanghelios. To this end, Covenant forces would take control of the Argent Moon and scour it in hopes of finding any materiel to help with this goal.

Setbacks

Prior to the attack on Sanghelios, the Swords of Sanghelios launched their own assault on Hesduros, hoping to kill 'Mdama and destroy his Covenant for good. The Swords failed to achieve their primary aims, but the offensive did devastate much of the Covenants major infrastructure across Hesduros. Following this defeat, Jul and his forces had to completely abandoned Hesduros.

Leading into the conflict, Sanghelios was in a tense state.

War

Ignition of conflict

Around October 17, 2558, Jul 'Mdama's forces besieged Sanghelios. As their forces attacked, whatever assets they had left on the planet rose up and Sanghelios burst into a worldwide conflict. The majority of city-states experienced heavy fighting. Despite the conflicts on the planet previous to this point, this was the first time that fighting on Sanghelios was characterized as a global war.

Although the Arbiter did not formally request support from the UNSC, personnel on the UNSC Infinity were given a warning order that intervention to support the Swords of Sanghelios might be required.

During the assault, Jul 'Mdama's Covenant would gain control of Sunaion and began to plan for a strike on Vadam while the Arbiter defended the inland portions of Vadam. However, local Swords of Sanghelios forces would be made aware of this and would establish a forward operating base in the ruins of Nuusra. They would hope to strike the Covenant at Sunaion.

A member of the House of Vadam, Murok 'Vadam, would divulge the location of where the Arbiter was stationed to the Covenant in exchange for power and prestige.

Covenant Kraken fighting over Nuusra.

Fighting at Nuusra

"With Arbiter's victories and the death of Jul 'Mdama, the Covenant grow desperate. They have began an assault on 'Vadam lands, targeting Arbiter specifically."

— Mahkee 'Chava to Fireteam Osiris.

Main article: Battle of Nuusra

On the morning of October 27, 2558, the Covenant made a last-ditch attempt to kill the Arbiter at Nuusra. Partway through the battle, the Spartans of Fireteam Osiris would assist Swords forces in repelling the Covenant and extracting the Arbiter Thel 'Vadam.

After discussions took place between human forces and the Swords, Fireteam Osiris would move to a Forerunner installation to retrieve a Constructor.

With it, the humans modified it to activate the Guardian beneath the sea city of Sunaion. Sunaion was also at this point, the Covenant's last stronghold. Together, the humans and the Swords of Sanghelios left Nuusra to attack.

Covenant and Swords forces fighting in Sunaion.

Last stand

"The Covenant soldiers will hear the Guardian wake from its slumber, they will look up over the bodies of their brothers, through the smoke of their burning city, they will look to the horizon as their holy idol rises from the sea and forsakes them. And that is when the Covenant dies."

— Thel 'Vadam to a few of his officers.

Main article: Battle of Sunaion

The Swords of Sanghelios moved into Sunaion deploying Thel himself and Fireteam Osiris. They would split up with Osiris moving to take out anti-aircraft weapons. At least one ship in the air above the battle fell into the Csurdon Sea below.

Osiris eventually went into the under city fighting Covenant forces there. The Guardian buried below began to rise, and with it Created forces joined the fray.

After Fireteam Osiris managed to make there way aboard the departing Guardian, the Swords would finish off the remaining Covenant forces.

Aftermath

Created occupation

Main article: Subjugation of Sanghelios

Following the conclusion to the battle of Sunion, Cortana would send a second Guadian to Sanghelios, wiping out most of the remaining Covenant ships, as well as shutting down power across the hemisphere. The Created would eventually take total control of Sanghelios, as well as placing an administrator in charge of the planet.

Gallery

• 

  The forces of the Swords of Sanghelios, assembled and ready to assault Sunaion.

List of appearances

• Halo 5: Guardians (First appearance)
• Halo Mythos: A Guide to the Story of Halo
• Halo: Legacy of Onyx (First named)
• Halo: Bad Blood (Mentioned only)
• Halo: Official Spartan Field Manual (Mentioned only)