
Fight for her.

Earth (known as Erde-Tyrene by prehistoric humans and Forerunners)[8] is the third planet of the Sol system, and one of its four terrestrial worlds. Homeworld of the human species, Earth has been at the forefront of galactic history, from encounters with the Precursors[8] to the end of the Covenant Empire.[9] Inhabited long ago by a prehistoric interstellar human government conquered and dissolved by the Forerunners,[8] Earth is currently the capital world of the Unified Earth Government.



Cycle response



Main article: Prehistoric human civilization




Forerunner-Flood warEdit

Near the end of their war with the Flood,[10] the Forerunners built a machine to generate a slipspace portal to the Ark in Africa.[11] They also indexed the human species as a part of their Conservation Measure to preserve life in the galaxy after the activation of the Halo Array. After the array's activation, human life was planted back on Earth, where it successfully re-developed.[12]

Civilization and the Modern AgeEdit

Main article: Human




Interplanetary colonization and conflictsEdit




It was not until 2291 that this problem was solved when researchers created the Shaw-Fujikawa Translight Engine which enabled superluminal travel by allowing access to an alternate domain known as Slipstream Space. In 2310, the UNSC unveiled their first line of colony ships and the best and brightest from both civilian walks of life and the military set out to form the Inner colonies. This eased the overpopulation problem upon Earth which became the capital of the Unified Earth Government, while the inner colony of Reach would later become the headquarters of the UNSC.[13]

The Insurrection and the Human-Covenant warEdit

Main articles: Insurrection and Human-Covenant war



Despite the effectiveness of this law, on 20 October 2552, the Covenant launched their first attack upon Earth, rendering the Cole Protocol moot and initiating the final confrontation between UNSC forces and the Covenant.[14][15]

Pre-Battle of EarthEdit

Prior to the Covenant invasion of Earth, there had been a suppressed influx of information by ONI, resulting in people going about their normal lives even up until the attack. Several fleets were brought to Earth. Some like the Fifth Fleet were merged with the Home Fleet in a special command grouping.[16] Other fleets brought to Earth include the Second Fleet, Seventh Fleet, and the Sixteenth Fleet.[17] The 6th Battle Group[18] along with large amounts of Marines, Army Troopers, and ODSTs present, five SPARTAN-IIs were also brought to or were near Earth.

Battle of EarthEdit

H2a cinematic 00012


Main article: Battle of Earth


H2A Cutscene BattleofEarth

The space battle above Earth.


Groundside, the Covenant assault carrier had already deployed its ground forces and occupied the city. The Covenant ground forces immediately constructed defense emplacements and structures to reinforce their newly acquired sites against the counter-offensive UNSC forces. The UNSC In Amber Clad was the first UNSC ship to respond to the Covenant occupation. The ship sent in their complements consisting of SPARTAN-II John-117, Sergeant Avery Johnson and elements of the 7th Orbital Drop Shock Trooper Battalion.[19] The Covenant were subsequently dislodged from Old Mombasa and, following the destruction of a Scarab, from New Mombasa as well.[19][20] The High Prophet of Regret eventually ordered a general retreat and had his assault carrier initiate a slipspace jump while still over the city. The In Amber Clad followed in the carrier's wake, while the city was left in chaos.[20]

Portal odst


Prior to the slipspace event, a contingent of ODSTs were dropped from the UNSC Say My Name to assist the In Amber Clad's counter-offensive efforts.[21] The slipspace rupture prevented the assist from taking place, plunging the ODSTs into uncontrolled freefall and scattered across the city. However, one particular squad of ODSTs survived and continued their operation in securing the city's infrastructure AI.[21] During the operation, the squad witnessed the arrival of a larger Covenant fleet after escaping the city.[21]


The arrival in-system of John-117 in a Covenant-controlled Forerunner dreadnought, freshly escaped from the Battle of Installation 05, was unexpected.[23] John-117 disembarked from the dreadnought in Earth's atmosphere, later recovered by Marines and taken to Crow's Nest.[24] With the aid of Thel 'Vadam, Commander Miranda Keyes, and Sergeant Avery Johnson, John-117 breached the Covenant anti-air defenses near the excavated artifact, clearing the way for an aerial strike on the Dreadnought powering it.[25][26] The strike was unable to disable the device or prevent the Prophet of Truth from traveling through the portal. After a brief intervention by the Flood, a joint Separatist/UNSC force departed through the portal in pursuit.[27] This series of events saw the complete departure of the Covenant from Earth as they ventured forth to Installation 00, where they would finally be crushed by the UNSC and their Separatist allies.

Post-War PeriodEdit



The Composer firing on New Phoenix.

On July 25, 2557,[28] Shadow-of-Sundered-Star moved into targeting range in the Mantle's Approach with the Composer and proceeds to compose the residents of New Phoenix. John-117 and with the help of Battlegroup Dakota, flew a Broadsword into the ship. There he confronted the Didact and used a Pulse grenade to send him through a slipspace portal to Installation 03. John then detonates a HAVOK Tactical Nuclear Weapon, destroying the Composer and the ship. This was then dubbed the New Phoenix Incident and the city was placed under quarantine until eight months later on 24 March 2558.[28]

In 2557, only six months after the New Phoenix Incident, an unknown Sangheili refugee attempted to detonate a HAVOK Tactical Nuclear bomb in Rio de Janeiro, but was apprehended by Fireteam Majestic before he could do so.[29]

At the beginning of The Reclamation, the Created knocked out power on Earth[30] and occupied it.[31]


The UNSC Supreme Headquarters is located on Earth and somewhere within the United Republic of North America[32] and is most likely where Earth is governed. This is mostly likely because the United Nations existed in New York City for a long time. It is very possible that the UNSC Supreme Headquarters was falsely identified and it is actually supposed to be the UEG's headquarters or doesn't exist. Not much else is known about Earth's specific government.



Trade was one of the most important parts of the economy of Earth as most planets gathered resources to be sent back to Earth. This can be seen with Harvest, as they exported to Earth; mineral water, livestock and vegetables and fruit goods.[33] As well, colonies like Reach exported out (presumably) metals like Titanium, to Earth.[34] There are six orbital elevators on Earth that can allow for products to move off and on the planet.[35]


Earth was also home to shipbuilding and repair yards.[36]

Corporations On PlanetEdit

A variety of corporations on operated on Earth and in different places. Seattle alone was known as a very corporate city.[37]


Main article: List of corporations on Earth


Earth was one of the, if not the most heavily defended planets in the human space as it was the capital of the UEG. Sydney contained the HIGHCOM Facility Bravo-6, the UNSC's headquarters, which was nicknamed 'The Hive'.[38]

Military AssetsEdit

There were over three hundred operational Orbital Defense Platforms.[39] As well, there was the UNSC Home Fleet that would help defend Earth and any other Sol system colony. Large amounts of Marines, ODSTs, and Army Troopers were as well on Earth or in system.

In the Post-War Era, the Home Fleet had a new formation called Battlegroup Dakota that consisted of the UNSC Infinity plus several newer UNSC Starships.[40]

Police AssetsEdit

SWAT Teams on Earth were known to use special riot control Cyclops known as 'Peacekeepers'.[41]


Earth was home to a wide variety of cultures and societies. Earth was home to large "megaplexes"[42] or "megacities".[41]


Beijing and New York City were known as "big media-advertising" cities.[43]

Physical AspectsEdit

Planetside, Earth has seven continents of extremely varied climates.

Ground LocationsEdit

Orbital LocationsEdit

Known ResidentsEdit



Born OnEdit

These were the people who were born on Earth.


These were the people who were known to be on Earth, but it isn't known whether they were born there or were from elsewhere.

Artificial IntelligenceEdit


Pre-Release MaterialEdit

Orbital ViewsEdit


The AmericasEdit

The ArcticEdit



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  2. "Useful Constants," publisher: International Earth Rotation and Reference Systems Service
  3. Halo 4 Essential Visual guide preview
  4. 4.0 4.1 Halo Encyclopedia - 282
  5. Halo: The Essential Visual Guide, page 54
  6. Halo 3 Bestiarum
  7. Halo: Combat Evolved - Level: The Pillar of Autumn
  8. 8.0 8.1 8.2 8.3 Halo: Cryptum
  9. Halo 3 - Halo
  10. Compound Intelligence: All Five Servers Information Compiled
  11. Halo 3: The Cradle of Life
  12. Halo Legends - Origins
  13. 13.0 13.1 13.2 Halo Storyline (Defunct, Copy on HBO Forums)
  14. Halo: The Fall of Reach - page ??
  15. 15.0 15.1 15.2 Halo 2 - Level: Cairo Station
  16. Halo Legendary Crate - Bonus Item: First Twelve Hours
  17. Halo: Ghosts of Onyx - page 205
  18. Halo Graphic Novel - page 86
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  20. 20.0 20.1 Halo 2, campaign level Metropolis
  21. 21.0 21.1 21.2 Halo 3: ODST - Campaign
  22. Halo: Ghosts of Onyx - page ??
  23. Halo 3 - Level: Sierra 117
  24. Halo 3 - Level: Crow's Nest
  25. Halo 3 - Level: Tsavo Highway
  26. Halo 3 - Level: The Storm
  27. Halo 3 - Level: Floodgate
  28. 28.0 28.1 Halo: Escalation Issue 7
  29. Spartan Ops - Episode 1: Departure
  30. Halo 5: Guardians - Level: Guardians
  31. Halo Waypoint: Canon Fodder - Log of War
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  34. Bungie.netExcerpt from CAA Factbook: Reach
  35. Halo Waypoint, "Space Elevator" article
  36. Halo Waypoint: Halo Community Update - Chasing Shadows
  37. Halo 5: Guardians - Level: REQ Card - Fotus
  38. Halo: First Strike - page 98
  39. Halo 2 - Level: The Armory
  40. Halo 4 - Level: Midnight
  41. 41.0 41.1 Halo Waypoint: Universe - Cyclops
  42. Halo 5: Guardians - Description: REQ Card - Wild Hunt
  43. Halo Graphic Novel - Second Sunrise Over New Mombasa
  44. Halo Waypoint: Alistair Bov Estrin