The Battle of Algolis was a battle that took place in the Algol System at an unknown point in the Human-Covenant war.


Ground BattleEdit

At an unknown time during the war, the UEG colony Algolis was attacked by the Covenant. While civilians were evacuated by Marines, a team of engineers were sent to a UNSC testing facility to enact the Cole Protocol, destroying navigation data and a prototype suit of power armor. However, one Marine engineer, "Ghost," went against orders and equipped the armor, hoping to redeem himself as a promise to a now dead comrade.[2]

Ghost managed to destroy a large number of Covenant forces, allowing the Marines and civilians to escape. When damaged and cornered, Ghost gave a code word activation - "Be Human" - and activated a nuclear self-destruct in the armor, killing himself, and all Covenant forces in the area. Marines fell back to a UNSC Frigate in orbit over the planet, and moved to rendezvous with UNSC The Heart of Midlothian.[2]

Despite the actions of the UNSC, the Covenant managed to establish a base of operations on the planet.[3]

Space BattleEdit

Battle of Algolis

UNSC The Heart of Midlothian under siege.

Covenant forces boarded the UNSC Destroyer The Heart of Midlothian as soon as it dropped out of Slipspace and killed the crew in their entirety save one ODST, Michael Baird, and disconnected the shipboard AI. Baird was in the surgery unit and was informed by the ship's AI, Mo Ye, that she was unable to self-destruct the ship as per the Cole Protocol due to a restriction placed on her in her disconnected state which did not allow her to willingly harm a human.[4]

Mo Ye guided Baird to the bridge of Midlothian whereupon an Elite was "tricked" into killing Baird so as to allow Mo Ye to destroy the ship. As a result of Midlothian's self-destruction the Covenant battle group that surrounded it was completely destroyed.[5]

The Banished's BeginningsEdit

In the midst of the battle, the Covenant began to fear a revolt from the Jiralhanae Atriox. In an attempt to end his life, he and other Jiralhanae were sent on one last mission against UNSC forces. Most of his compatriots died but he did not. Atriox, who was questioning his loyalty to the Covenant, struck down a pious Jiralhanae while in combat.[3]

For his treason, Atriox was to be executed once he returned to the Covenant planetside base. However, he and several loyal Jiralhanae rose against their Sangheili masters, beginning The Banished.[3]



Naval AssetsEdit

Class Name Status
Halberd-class destroyer UNSC The Heart of Midlothian Destroyed
Charon-class light frigate Unnamed Unknown

Military PersonnelEdit

Branch Rank Name Status
UNSC Marine Corps Sergeant "Ghost" KIA


Covenant EmpireEdit

Military PersonnelEdit

Branch Name Status
Unknown Atriox Survived and mutinied


  1. Dr. Halsey's personal journal notes that the colony was still intact in January 2532.
  2. The Banished are known to have operated as a group for roughly a decade, prior to the events of Halo Wars 2. Thus 2559-10=2549


  1. Wikipedia's article on Algol
  2. 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 Halo Legends - Prototype,
  3. 3.0 3.1 3.2 3.3 3.4 3.5 Halo: Rise of Atriox - Issue #2, Page ??
  4. Halo: Evolutions - Essential Tales of the Halo Universe - Midnight in the Heart of Midlothian, Page ??
  5. Halo: Evolutions - Essential Tales of the Halo Universe - Midnight in the Heart of Midlothian, Page 81-102

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