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Massacre of the Outer Colonies

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Massacre of the Outer Colonies
Harvest Plasma Glassed.jpgHarvest glassed in 2525

Conflict:

Human-Covenant War

Date:

February 3, 2525 - June 1, 2536[1]

Location:

Outer Colonies, Orion Arm

Outcome:

Covenant Victory

  • Most Outer Colonies are glassed
  • Insurrection dies down due to heavy casualties from the Covenant attacks
Details
Belligerents


Commanders

Strength
Casualties

Immensely devastating

  • Over 62,154,022 civilian and military casualties[2]
  • Hundreds of ships lost

Moderate to heavy

 

The Massacre of the Outer Colonies[3] is a series of engagements during the early portion of the Human-Covenant War.[4]

Background

Insurrection

Main article: Insurrection
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Battle

Harvest and the humanity's response

CMA Argo was tasked with investigating the silence of Harvest, but signals with it were soon lost too. The Colonial Military Administration sent Battle Group 4 to investigate the escalating situation. Arriving on October 7, 2525, the Battle group was attacked. Only the CMA Heracles managed to escape. The Heracles returned to Reach[5] on October 31st, relaying what had happened and a message: "Your destruction is the will of the gods, and we are their instrument."[6]

The following day, on November 1, 2525, the Unified Earth Government began mobilizing the CMA and UNSC.[6] Specifically, the UNSC went to full alert and stripped the CMA of its forces, giving them to NAVCOM and UNICOM.[1] On November 2, the SPARTAN-IIs were deployed.[6]

Early battles and losses

On the 27th of November, Chi Ceti IV was assaulted by a Covenant ship at the same time SPARTAN-II forces were receiving their MJOLNIR Powered Assault Armor. Almost immediately after in December, the SPARTANs were reassigned to fight the Covenant at Alpha Corvi II.[7]

The first year

The beginning of 2526 saw the destruction of Bliss.[8] Soon after in March, Preston Cole in charge of UNSC Battle Group X-Ray fought the Covenant off over Harvest.[9] Seven days later, Cole as well as others would devise Operation: SILENT STORM, part of which would involve laying a trap at Biko using Task Force Yama.[10] Biko however would still fall to the Fleet of Inexorable Obedience, despite these actions by the UNSC. Almost a month after, the prestigious Corbulo Academy of Military Science on Circinius IV was destroyed, leaving only 3 survivors.[11]

Only two days after Circinius IV, ONI projects were refocused to solely counter the Covenant. As well, ONI Section Two sent emissaries to Outer Colony leaders to warn them of the Covenant and give them an offer: end hostilities with the UNSC and receive protection. Initially they laughed at the prospect, until they witnessed footage of Bliss.[12]

Planets began falling two or three a week. The Office of Naval Intelligence was unable to collate intelligence at the rate of the Covenant's incursion. UNSC Fleet Command was unable to plan out grand strategies and thus granted operational autonomy to UNSC naval units.[13]

In the summer, UNSC forces along with forces from the Children of Mesra fought the Covenant on Mesra.[13]

At the end of the year, the UNSC and Covenant fought a large battle in the Alpha Aurigae system.[14]

Pressing inward

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Refugees

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Aftermath

Continuing losses in the Outer Colonies

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The Inner Colonies

Main article: Siege of the Inner Colonies

On June 1, 2536, the Covenant had finally broken into the Inner Colonies.[1] This would be the beginning of a multi-year siege of the most inner worlds of humanity.

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Timeline

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2525

2526

2527

2528

2530

2531

Gallery

Sources