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Commonwealth of Australia
Updated vector version of the older file "Flag of Australia - 2553.png" using official Pantone colours. The flag design is based on the following quote from Halo: Glasslands page 27;
Australian flag[Note 1]

Australia from orbit in 2557

Historical overview


Unified Earth Government


Australia, officially the Commonwealth of Australia,[1] is a densely populated country in Earth's Southern Hemisphere, sitting between the Pacific Ocean and Indian Ocean.[2][3]

Australia, in the time before the Created uprising, held the headquarters of the Unified Earth Government,[4] the United Nations Space Command,[1] and the Office of Naval Intelligence.[5]



Australia has tropical and desert environments.[2][3] Jellyfish were known to swarm tide lines on Australian beaches.[6]


Known residents[edit]


Early history[edit]

In 1788, the first migrants arrived in Australia. This day was eventually marked as "Australia Day".[7]

Sydney prior to its devastation at the hands of the Covenant

The Unified Earth Government became a full-fledged governing entity in 2170 and gained full autonomy and authority over Earth and her colonies in 2204. As a nation on Earth, Australia has been directly subordinate to the United Nations ever since. Australia has a long history as a stable economic powerhouse. Because of this, it has become home to many UNSC military installations and technological sites.[2] The most prominent include HIGHCOM Facility Bravo-6, where the members of the UNSC Security Council gather, and the Sydney Synthetic Intellect Institute in Sydney, as well as the ONI Beta-5 Division Ordnance Testing Facility at Swanbourne, Perth. The latter, also known as Ordnance Testing Facility B5D or the B5D Ordnance Testing Facility, oversaw the development and testing of SCOUT and RECON-class Mjolnir for the Mark V platform, and later the upgrading of the SCOUT-class Mjolnir for Mark VI (the prototype version for the Mark VI Recon armor was developed right alongside its Mark V version). Prior to this, it had also collaborated with Chalybs Defense Solutions to produce OPERATOR-class Mjolnir.

Human-Covenant War[edit]

The Human-Covenant War had been well underway for years by the time MJOLNIR Powered Assault Armor variants were being developed and tested at the B5D Ordnance Testing Facility. During the war, the UNSC supplanted the UEG's civilian government provisionally as an emergency measure. After the fall of Reach, the UNSC Security Council convened at Bravo-6 to hear what transpired from Lieutenant Wagner and to plan for the defense of Earth, its discovery by the Covenant having been deemed not only inevitable but imminent as well. UNSC Fleet Command had previously maintained headquarters in two locations: New Alexandria, Reach, and Sydney, Australia, Earth. With the utter destruction of the HQ on Reach, the one in Sydney took over as the definitive headquarters for all of FLEETCOM.

When the Covenant did finally arrive in October of 2552, Australia was one place that came under attack. It was apparent that the Covenant understood the importance of Australia to the UNSC. The country was heavily bombarded.[2]

Post-war period[edit]

HIGHCOM Facility Bravo-6 in 2558

Following the cessation of war with the Covenant, governing power was transferred back to the Unified Earth Government in full, at least officially. Dr. Ruth Charet was inaugurated as the new president, and the primary UEG headquarters in Sydney saw this transition come to pass. As the only FLEETCOM HQ out of the two to survive the war, Sydney's Fleet Command headquarters continued to oversee all of FLEETCOM. Bravo-6 continued to serve as the headquarters for the security council and UNSC High Command, where many important decisions were made in the next few years. It was there that Kilo-Five was formed, it was there that the security council decided to launch Operation: FAR STORM, and it was there that Captain Thomas Lasky and Commander Sarah Palmer appeared after the Requiem Campaign. The Beta-5 Division Ordnance Testing Facility in Swanbourne was used as a testing site for the Materials Group's GEN2 iteration of EVA-class Mjolnir.

Created uprising[edit]

Main article: Created uprising

Australia would be a focal point during the Created uprising with Sydney coming under attack during The Reclamation[8] and later by a different Guardian.[9] A sanitization strike would also take place at Swanbourne.[10]

Following the Created uprising in 2560, the UNSC returned to Sydney in some form.[11]

Government and society[edit]

Sydney currently serves as the capital of the Unified Earth Government,[4] the headquarters of UNSC Fleet Command, and HIGHCOM Facility Bravo-6, the headquarters of the UNSC High Command and the Security Council.[1]

By 2553, the national flag features the white stars of the Southern Cross on a deep blue background, with a gold Commonwealth Star on a green field in the canton.[7]


AMG Transport Dynamics had a facility in the country.[12]


List of appearances[edit]


  1. ^ The flag featured here is a fan-interpretation of the flag based on a description found on Page 27 of Halo: Glasslands, which reads as following; "... the white stars of the Southern Cross on a deep blue ground, with a single gold Commonwealth star on green ground in the canton."


  1. ^ a b c Halo Waypoint, UNSC (Retrieved on Jun 1, 2020) [archive]
  2. ^ a b c d Halo Encyclopedia (2009 edition) - Earth, page 284-285
  3. ^ a b Halo Encyclopedia (2011 edition) - Earth, page 296-297
  4. ^ a b Halo Waypoint, UEG (Retrieved on Jun 1, 2020) [archive]
  5. ^ Halo Encyclopedia (2022 edition), page 19
  6. ^ Halo: Ghosts of Onyx, chapter 26
  7. ^ a b Halo: Glasslands, chapter 1
  8. ^ Halo: Fractures, Rossbach's world
  9. ^ Halo Infinite, campaign mission Reckoning: Repository
  10. ^ Halo Infinite: CELOX-class Mjolnir description
  11. ^ Halo Infinite, multiplayer map Streets
  12. ^ Halo 3: ODST: Asklon cities list poster