Human-Covenant War

Previous:	Insurrection (original conflict)
Concurrent:	Insurrection (in reduced capacity) Great Schism
Next:	Post-Covenant War conflicts Blooding Years Insurrection (postwar resurgence) Sangheili-Jiralhanae war Created uprising
Human-Covenant War
Clockwise from top left: Insurrectionists are attacked by the Covenant at Alpha Corvi II; UNSC forces under fire inside a Relic on Harvest; a CAS-class assault carrier glassing Kholo; John-117 on a Pelican over Installation 04; Sangheili Honor Guardsmen fighting Jiralhanae at the start of the Great Schism; Arbiter Thel 'Vadam, John-117, Sergeant Avery Johnson, and 343 Guilty Spark on Installation 08
Date:	February 11, 2525–December 11, 2552 (March 3, 2553 (official ceremony)) Ninth Age of Reclamation-First Age of Retribution (Covenant timekeeping)
Location:	The Orion Arm of the Milky Way
Outcome:	Human-Sangheili victory Covenant Empire collapses Flood threats sterilized and contained Activation of the Halo Array averted Human and many Sangheili forces reconcile Ongoing conflict between former Covenant factions
Details Belligerents UEG UNSC Covenant separatists (From November 3, 2552 onwards) Fleet of Retribution Insurrectionists URF Covenant Flood Forerunner constructs Commanders High Command FADM Lord Terrence Hood ADM Preston Cole† (MIA, assumed KIA) ADM Margaret Parangosky ADM Michael Stanforth† ADM Danforth Whitcomb† Fleet of Retribution Arbiter Thel 'Vadam Shipmaster / Fleetmaster Rtas 'Vadum Insurrectionists Governor Jacob Jiles† High Prophets of the Covenant† High Prophet of Truth† High Prophet of Regret† High Prophet of Mercy† Covenant High Council Military commanders Chieftain of the Jiralhanae Tartarus† Fleetmaster Nizat 'Kvarosee Special Operations Commander Rtas 'Vadumee (pre-Great Schism) Arbiter Ripa 'Moramee† Fleetmaster Voro Nar 'Mantakree† (pre-Great Schism) Imperial Admiral Xytan 'Jar Wattinree† (pre-Great Schism) Supreme Commander Thel 'Vadamee (pre-Great Schism) Gravemind† Forerunner constructs 343 Guilty Spark (WIA) Casualties Human population reduced considerably Approximately 23 billion civilian and military casualties by October 20, 2552; billions more during the Battle for Earth Widespread infrastructure, structural, and environmental damage to the vast majority of UEG colonies Heavy Sangheili casualties Devastation of the Sangheili colony, Joyous Exultation. Destruction of the Sangheili colony, Glyke Billions of civilian casualties Heavy Insurrectionist casualties All Eridanus Rebels killed Moderate Rubble rebel casualties Outer Colonies decimated Heavy casualties for all Covenant races Destruction of the Covenant holy city, High Charity Destruction of the Covenant battle station Unyielding Hierophant. Near-extinction of the ruling San'Shyuum Extreme casualties for the Flood High Charity destroyed Installation 05 sterilized All Flood forces destroyed at the Etran Harborage, Installation 04 and Installation 08 Heavy casualties for Forerunner constructs Destruction of Installation 04 and its replacement Installation 08 Glassing of Installation 05 Devastation of Installation 00