Human-Covenant War: Difference between revisions

Long before the events around Halo, the classified UNSC colony of [[Onyx]] had been designated the headquarters and training ground for the SPARTAN-III Program. However, the UNSC had no idea that the planet was in fact a huge [[Forerunner]] construct, integral to the [[Halo Array]], and containing trillions of [[Onyx Sentinel|Sentinels]].<ref>'''Halo: Ghosts of Onyx''', ''pages 377-378''</ref> After John-117's destruction of Alpha Halo, the Sentinels were roused by the disruption of the Halo network and the portal leading into the [[Sharpened Shield|Shield World]] at the planet's core began to close. At this time, a small group of SPARTAN-IIIs were training in a top honors exercise on the surface. After the humans failed to exchange the proper counter-responses, the Sentinels relabelled the [[Reclaimer]]s as an "aboriginal subspecies" and began to exterminate them.<ref>'''Halo: Ghosts of Onyx''', ''page 133''</ref> Led by [[Kurt-051]], the SPARTAN-IIIs fought a guerrilla war against the Sentinels until Doctor [[Catherine Halsey]] arrived on Onyx and explained the wider situation. Knowing that the Forerunner technology buried in Onyx's core could turn the tide of the war for humanity, Halsey used Forerunner technology to send a message to [[Fleet Admiral]] [[Terrence Hood|Sir Terrence Hood]], requesting reinforcements. Hood deployed [[Blue Team]] to Onyx, who stole [[Bloodied Spirit|a Covenant destroyer]] to reach the planet in time.<ref>'''Halo: Ghosts of Onyx''', ''page 221''</ref>

Underneath Onyx, the Spartans had discovered the [[core room antechamber]] and were preparing to enter the Shield World. They managed to hold off hundreds of Covenant troops before being forced to retreat into the core, while Kurt-051 sacrificed himself by detonating two [[FENRIS nuclear warhead]]s, killing the entire separatist force.<ref>'''Halo: Ghosts of Onyx''', ''page 371''</ref> Following the core being sealed, Onyx broke up into trillions of Sentinels, guarding the construct. With the Covenant separatists dangerously depleted, the warlike Sangheili were finally forced to ally with their enemy, humanity.

*[[Battle of Onyx]]. The destruction of [[Installation 04]] wakes dormant Forerunner installations, including the Sentinels on Onyx which then threaten the UNSC base there. The SPARTAN-IIs of Blue Team fight their way off of [[Earth]] and commandeer a [[Covenant Destroyer]], the ''[[Bloodied Spirit]]'', to relieve [[Onyx]]. Covenant and UNSC ships converge on Onyx but ultimately all are destroyed except for the {{UNSCship|Dusk}}. UNSC survivors retreat within the Onyx [[Shield World]].

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