Editing Sydney

{{Era|Human|UNSC|HCW|Post}}

{{Newcontent|[[Halo Infinite]]}}

|governance=[[Unified Earth Government]]{{Ref/Site|Id=waypoint ueg|D=01|M=6|Y=2020|URL=https://www.halowaypoint.com/en-us/universe/factions/ueg|Site=Halo Waypoint|Page=UEG}}

'''Sydney''' is a [[city]] in the [[national government|country]] of [[Australia]] on [[planet]] [[Earth]]. The city serves as the primary headquarters of the [[Unified Earth Government]].{{Ref/Reuse|waypoint ueg}} Notably, Sydney is host to the [[United Nations Space Command|UNSC]]'s headquarters, a massive base called [[HighCom Facility Bravo-6|HIGHCOM Facility Bravo-6]]. The base, nicknamed "the Hive", stretches three kilometers underneath the surface.{{Ref/Novel|Halo: First Strike|Page=98}} It is where members of the [[UNSC Security Council]] discuss matters concerning the safety of the UNSC, Earth, and [[Human colonies|its colonies]].{{Ref/Novel|[[Halo: First Strike]]|Page=104}}

Sydney is also the location of the [[Sydney Synthetic Intellect Institute]], or "Double S.I.". SSII worked on the creation of AI constructs, theorizing new approaches and calculating the details necessary for the creation of the AI.{{Ref/Novel|Halo: Ghosts of Onyx|Page=147}}

Much of the city was rebuilt by [[2558]],{{Ref/Comic|[[Halo: Escalation]]|Issue=[[Halo: Escalation Issue 1|#1]]}} the Sydney skyline now often populated by [[civilian]] transports ferrying goods from ships in orbit and [[F-41 Broadsword]] patrols, with the [[UNSC frigate|frigate]] {{UNSCShip|Plateau}} standing guard in the lower atmosphere above Sydney. In [[2558#October|October 2558]], the [[Created]] sent a [[Guardian]] to [[Subjugation of Earth|neutralize forces]] opposing the newly established empire's rule. When the Guardian arrived over Sydney, the ''Plateau'' and the patrolling Broadswords engaged the massive construct, though the fighters were easily destroyed and the frigate's armaments proved ineffective. The Guardian proceeded to release an [[electromagnetic pulse]] across the city, disabling the ''Plateau'' and sending the frigate falling towards Sydney. If the ''Plateau''{{'}}s engine core detonated upon impact, Sydney would have been destroyed. Only a handful of individuals, including [[Terrence Hood]] and [[Serin Osman]], escaped Sydney.{{Ref/Reuse|rw}}  

Luckily the frigate crashed without detonating its engine, so the city survived but not for long. Between October 2558 and December 2559 Cortana called on Lord Hood to submit to her enforcement of peace across the galaxy. When Hood refused her, she responded by attacking Sydney with a Guardian, resulting in the total destruction of the city.