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Battle of Kamchatka
Conflict:	Post-Covenant War conflicts
Date:	Between October 17, 2558 and October 24, 2558
Location:	Kamchatka
Outcome:	UNSC victory Dr. Catherine Halsey rescued Jul 'Mdama is killed Remnants of Covenant fleet routed
Belligerents United Nations Space Command Swords of Sanghelios Jul 'Mdama's Covenant Created Commanders Captain Thomas Lasky Commander Sarah Palmer Spartan Jameson Locke Supreme Commander Jul 'Mdama† Kitun 'Arach Strength Expeditionary Strike Group 1 UNSC Infinity At least one D79-TC Pelican Fireteam Osiris Some Sangheili Storm Several Brigantines Multiple blockade runners Several Man O' War One Type-55 Kraken Many Type-57 Phantoms Several Type-57 Spirits Numerous Type-54 Banshees Several Type-58 Wraiths Dozens of Type-54 Ghosts Numerous Covenant Lances Sangheili, Unggoy Kig-Yar Several Phaeton gunships Several Promethean Crawlers Several Promethean Knights Several Promethean Soldiers Casualties Presumably all Sangheili Storm Jul 'Mdama Scores of Covenant infantry forces Many Covenant vehicles At least one blockade runner Multiple Promethean forces

The Battle of Kamchatka was an engagement fought between the forces of the United Nations Space Command, Jul 'Mdama's Covenant faction, and the Prometheans in 2558, during which Dr. Catherine Halsey was rescued and Jul 'Mdama was assassinated. The UNSC operation at Kamchatka was designated Operation: ANCHORITE.

Prelude

Before the Great Purification, Kamchatka was an astroengineered Forerunner world, created to serve as a link to the galaxy-spanning network the Domain.

In 2558, a long-dead communications hub on the planet's surface activated, attracting the attention of Jul 'Mdama's Covenant faction. The Covenant established an outpost while Dr. Halsey, under temporary alliance with Covenant leader Jul 'Mdama, studied the relay and discovered that her old AI Cortana was alive and responsible for recent attacks on the human colonies by awakening Guardians. She contacted the UNSC about her discovery, but they did not take any action for three weeks. In the meantime Halsey made unsuccessful attempts to contact or deter Cortana's transmissions, but her lack of headway led to Jul 'Mdama growing impatient with her.

Battle

In October 2558, the UNSC Infinity deployed Fireteam Osiris, a Spartan-IV special operations squad, to retrieve Halsey and assassinate Jul 'Mdama. They dropped from low orbit by Pelican and landed amidst an enormous ship and ground battle, as Cortana had taken control of Jul's Prometheans and was unleashing them against him. The Covenant made little headway against the numerous droids, with the constructs managing to bring down a blockade runner and force back a Kraken walker. The chaos from the Prometheans' rebellion provided Osiris cover from the Covenant, allowing them to sneak to the temple where 'Mdama and Halsey were stationed.

After reaching the temple, Osiris killed Jul's Zealot guards and then turned to Jul himself, who was killed attempting to fight off Spartan Jameson Locke. They then took custody of Dr. Halsey and she was brought back to the Infinity to aid the search for the Guardians.

Aftermath

With Jul 'Mdama dead and the Prometheans now against them, his Covenant troops became desperate. Some of them fled to the Argent Moon to retrieve their soldiers scavenging the station, though most of them were killed during the raid on Argent Moon. Most of the rest regrouped on Sanghelios, attempting an attack on the Vadam clan burial grounds in hopes of a revenge attack against the Arbiter.

Trivia

Halo Waypoint's Canon Fodder article Fifty Caliber states that "unconfirmed reports" about the Battle of Kamchatka claim there might have been a temporary alliance between Fireteam Osiris and the Sangheili Kitun 'Arach of Jul's forces. This is a reference to the Enemy of my Enemy achievement, in which the player(s) can choose to save a Sangheili Warrior assaulting a hill against Promethean Soldiers, turning him from an enemy to an ally.

Gallery

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  Concept art of the battle for Halo 5: Guardians.

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  Fireteam Osiris descends onto Kamchatka.

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  Holly Tanaka smashing through a boulder.

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  Olympia Vale attacking a Phantom.

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  Jameson Locke attacking Ghost pilots.

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  Fireteam Osiris avoids a crashing Sangheili blockade runner.

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  Locke prepares to stab Jul 'Mdama.

List of appearances

• Halo 5: Guardians (First appearance)
• Halo: Legacy of Onyx (Mentioned only)
• Halo: Bad Blood (Mentioned only)