Operation

An operation is a planned military offensive conducted by a military force, generally against a specific enemy objective or group of objectives. Operations can be large scale military campaigns, battles or small, covert insertions. Operations receive unique code words to distinguish themselves from other actions without giving away sensitive information that could be intercepted by enemy forces.

Known Operations

 * Operation: ABLE SENTRY - A force reconnaissance operation, Edward Buck participated in to prepare for Operation: PHALANX on Circinius IV.


 * Operation: ACADEMIC (February 10 2558) - Fireteam Majestic was ordered to advance on Covenant cultists on a location on Requiem.


 * Operation: ALL-SEEING EYE (February 8 2558) - An operation that saw Fireteam Majestic recon for a location for a possible base establishment on Requiem.


 * Operation: ANCHORITE (October 2558) - An operation undertaken by Fireteam Osiris to rescue Catherine Halsey from Covenant custody on Kamchatka.


 * Operation: ASTUTE TIGER - An operation Edward Buck participated in on Harvest which consisted of deploying ADM's to predicted Covenant landing zones prior to UNSC evacuation.


 * Operation: ATHENA (2558) - Operation launched to discover the location of the Absolute Record.


 * Operation: ATLAS VIGILANCE (2558) - An aborted ONI mission undertaken by Spartan Vale that involved securing Shipmaster Ori 'Sumai at Salia III.


 * Operation: BLEACH (February 2558) - An ONI mission related to Mission to Alpha Shard, involving Codename: FIXER recovering information regarding it.


 * Operation: BLIND FAITH (2552) - A combined UNSC and Sangheili battlegroup follow the Prophet of Truth to Installation 00, locating and assassinating the leader of the Covenant.


 * Operation: BLOWBACK (2552) - Aborted Spartan-II Black Team covert operation to gather intelligence and destroy Covenant ships in Sub-sector 35.


 * Operation: BLUE MOON (Prior to 2530) - The operation involved the sweeping and clearing of a URF base on Eridanus II by an ODST team. Spartan-II Linda-058 provided cover fire for the team.


 * Operation: BRAVADO (2552) - An operation of involving Vice Admiral Michael Stanforth.


 * Operation: BREADCRUMB - A mission in which Captain James Cutter was involved at some point.


 * Operation: BRONZE COBRA (Between 2553 and 2557) - An operation on Venezia undertaken by Spartan-II Linda-058.


 * Operation: BUMRUSH (October 20, 2552) - An ODST mission during the Battle of Mombasa in which they had to infiltrate the Solemn Penance and force the ship down.


 * Operation: BUZZHAWK (September 2558) - A Surakan Militia сounter-operation against Jiralhanae invaders on the planet Carrow designed to destroy their flagship, the Foebane.


 * Operation: CARRION HEART (2553) - A UNSC operation details of which have been redacted by the ONI, though Fred-104 participated in it.


 * Operation: CARTWHEEL (2540's) - A SPARTAN-III Beta Company mission.


 * Operation: CHARLEMAGNE (2496) - The deployment of a company of ORION Project operatives against Insurrectionists over Eridanus II.


 * Operation: CHATTERBOX (February 9 2558) - An operation in which Fireteam Crimson and Fireteam Majestic were tasked to remove Covenant cultists in certain locations on Requiem, with Majestic focusing on a communications array.


 * Operation: CIRRUS (2552) - An operation in which Blue Team was tasked to rescue key military personnel from the Forerunner world of Onyx.


 * Operation: CLEAN SWEEP - An operation during the Insurrection.


 * Operation: COALPEPPER (2555) - A Spartan-IV operation to recover the Huragok Quick to Adjust from United Rebel Front-controlled Talitsa.


 * Operation: COUGAR REDEMPTION (Prior to 2557) - UNSC operation undertaken by Kelly-087.


 * Operation: DAWN ECLIPSE (Prior to 2558) - A mission during which Spartan Locke served as security for an ONI xenoarchaeological survey team at a redacted location.


 * Operation: DAYBREAK - Highly classified military exercises conducted by the UNSC Navy on Oban.


 * Operation: DELHI (Prior to 2558) - A denial of material mission against insurrectionist forces on Hat Yai, during which Spartan Locke succeeded in destroying twenty-one special technical assets.


 * Operation: DEVIL FREEDOM (Prior to August 2552) - Operation involving Kelly-087, who assisted the evacuation of civilians and targeting of Covenant landing craft for orbital bombardment on Imber


 * Operation: EASTERN AZURE (Prior to 2558) - A surveillance mission at Arcadia undertaken by Spartan Locke.


 * Operation: FAR STORM (2555) - Joint UNSC-Swords of Sanghelios mission to Installation 00.


 * Operation: FIRESIDE (2552) - An ODST mission on Ariel.


 * Operation: FIRST STRIKE (2552) - A small SPARTAN-II offensive against the Covenant battle station Unyielding Hierophant.


 * Operation: FLINT DEVIL (Prior to 2557) - An operation undertaken by Kelly-087 during which she was deployed to Installation 03 to provide security for a research facility on the ring.


 * Operation: FOCUS LENS 2555 (2555) - A joint-service exercise on Mars simulating a second invasion of the Sol system by the Covenant undertaken by Holly Tanaka.


 * Operation: GREY VEIL (Circa 2541) - An assassination mission on the planet Heian undertaken by an ODST squad accompanied by Spartan-II Cal-141.


 * Operation: GUARDIAN LANCE (2540) - The recovery of Covenant technology by the UNSC on Jericho VII.


 * Operation: HEMORRHAGE (Prior to August 2552) - Operation involving Kelly-087.


 * Operation: HERODUCK - A mission in which Spartan-IVs conducted field tests of BARVO-class Mjolnir helmet.


 * Operation: HORIZON (Prior to 2544) - An operation undertaken by John-117 with mission target to destroy Covenant exploratory fleet elements near Cascade.


 * Operation: HORN AND HIDE (Prior to August 2552) - Successful assassination of a San'Shyuum missionary on Odenli'sh by Linda-058.


 * Operation: HYPODERMIC (dates unknown) - A mysterious and secret ONI project that has been in progress since 2531.


 * Operation: INSTINCT (2553) - An operation during which Fred-104 rescued UEG diplomatic personnel and eliminated insurrectionist forces on the human colony of Andesia.


 * Operation: IRON FIST (Mid 2540s) - An operation undertaken by John-117 during which he was deployed to Miridem with the duel goals of asset denial and partial recovery of critical cyberinfrastructure assets.


 * Operation: JOINT MONITOR (After November 2552) - Biohazard containment operation following the Battle of Voi in which Alpha-Nine participated.


 * Operation: JOVIAN WHISTLE (May 2553) - Operation conducted by the UNSC on the human colony of Gao in order to retrieve Forerunner technology on the planet.


 * Operation: KALEIDOSCOPE (2502) - The assassination of rebel political leader, Jerald Mulkey Ander, on Harvest.


 * Operation: KINETIC STORM (During or after 2553) - A series of reconnaissance and strike operations in an unknown Joint Occupation Zone in which Edward Buck participated.


 * Operation: LAND GRAB (February 7 2558) - An mission which saw the initial assault and neutralization of Covenant positions inside Requiem.


 * Operation: LEFT JAB (2552) - UNSC Naval operation in support of Operation: UPPER CUT during the Fall of Reach.


 * Operation: MAD HATTER (Prior to 2558) - A mission during which Spartan Locke was a part of a counter-mobility strike in a redacted location on Jiralhanae-controlled "forgeship" Boundless Artifice.


 * Operation: MARSH FLASH (December 3, 2552) - An operation against clusters of Jiralhanae leadership attempting to activate an artifact in Arizona, directed by Fleet Admiral Joseph Harper. One of the final battles in the Human-Covenant war and the final battle in the Battle for Earth.


 * Operation: OBLIVION (June 2526) - An operation intended to capture a downed Covenant frigate on the planet Netherop. Turns into a three-way conflict between the UNSC, the Flotilla of Unsung Piety and the Covenant Fleet of Swift Justice led by the Silent Shadow.


 * Operation: OCEAN BREAKER (July 2552) - Spartan-II's deployment on Sigma Octanus IV.


 * Operation: OCEAN RAPTOR (Prior to 2558) - A UNSC operation that took place at a location redacted by the ONI. It was undertaken by Fireteam Stingray under command of Spartan Olympia Vale.


 * Operation: OCTAGON (Prior to 2553) - An operation undertaken by Linda-058. Mission details remain highly classified.


 * Operation: PALE SHADOW (Prior to 2537) - UNSC operation on Eirene involving Kelly-087.


 * Operation: PHALANX - An operation on Circinius IV.


 * Operation: POLECAT- An operation on a remote world that held a Sharquoi hive.


 * Operation: PROMETHEUS (2537) - The attack on the Covenant shipyard K7-49 by SPARTAN-III Alpha Company.


 * Operation: RED CLOUD - An ONI operation connected to the flood outbreak aboard the prison transport Mona Lisa.


 * Operation: RED FLAG (2552) - A planned operation to capture a Prophet. Scrubbed by the Fall of Reach.


 * Operation: RED ROOM (Prior to 2530) - An operation undertaken by Linda-058. Mission details remain highly classified.


 * Operation: RETRIBUTION (December 8-16, 2553) - An operation undertaken to avenge the murder of Graselyn Tuwa and to rescue her family.


 * Operation: ROCK HOUSE (Prior to 2530) - Operation undertaken by Fred-104 in which he neutralized an insurrectionist facility and personnel on Eridanus II.


 * Operation: SENTRY (Prior to 2558) - Operation undertaken by Olympia Vale in which she served as an advisor to Central Command during negotiations between the UNSC and the Covenant fleet over Tribute.


 * Operation: SHELL GAME (2556) - Operation undertaken by Fireteam Apollo to search for things of interest to ONI within the Threshold Exclusion Zone.


 * Operation: SILENT STORM (2526) - Operation aimed at buying humanity time to create an effective defense against the Covenant early in the Human-Covenant War by striking hard and fast at their forces.


 * Operation: SLOW DIVE (2550) - Offensive operation on a Covenant forward outpost.


 * Operation: SPEARBREAKER (2559) - Operation undertaken by ODST squad Sunray 1-1 during the Second Ark Conflict.


 * Operation: STONEBREAK - Operation involving at least one Orbital Drop Shock Trooper.


 * Operation: SUNSPEAR (September - December 2552) - A secret ONI retaliatory mission against Sangheili naval commanders undertaken by Spartan-II Gray Team, which resulted in the complete destruction of the planet Glyke.


 * Operation: SWITCHBACK (Prior to 2544) - An operation undertaken by John-117. Mission details have been redacted.


 * Operation: SWORD 52 (August 2552) - Support of evacuation operations during the Siege of New Alexandria in which Alpha-Nine participated.


 * Operation: TALON (September 2525) - Operation of the UNSC to capture Colonel Robert Watts from the URF's Eridanus Secundus undertaken by Blue Team.


 * Operation: TANGLEWOOD - A mission in which Avery Junior Johnson took part as a private.


 * Operation: TENDRIL - An operation related to the SPARTAN-II augmentation procedures.


 * Operation: THREE-CARD MONTE (February 11 2558) - An search and destroy operation for several Covenant cultist outposts on Requiem.


 * Operation: THRONE - Operation involving at least one Orbital Drop Shock Trooper.


 * Operation: TORPEDO (2545) - The attack on Covenant refinery planet Pegasi Delta by SPARTAN-III Beta Company.


 * Operation: TREBUCHET (2513) - A lengthy UNSC conflict against Insurrectionists.


 * Operation: UPPER CUT (2552) - The UNSC deployment of the Sabre fighters against the Covenant onslaught during the Fall of Reach.


 * Operation: VERITAS (2496) - ORION Project operation which uncovered Secessionist Union undercover agents occupying high offices within the Colonial Military Authority.


 * Operation: WARM BLANKET (2544) - Classified ONI operation to retrieve the captured Dr. Catherine Halsey from a Covenant fleet following the Battle of Miridem.


 * Operation: WEASLEY - A mission in which Spartan-IVs conducted field tests of the BARVO-class Mjolnir helmet.


 * Operation: WHISPER AMONG STARS - An operation in which Captain James Cutter was involved at one point.


 * Operation: WHISTLE STOP (May 2558) - A UNSC operation on the surface of Ven III to recover a bioweapon from the hands of a Sangheili and numerous Kig-Yar pirates, slavers, and smugglers.


 * Operation: WHITE GLOVE (2552) - The demolition of CASTLE Base to prevent it from capture.


 * Operation: WHITE SAND - An ONI operation connected to the flood outbreak aboard the prison transport Mona Lisa.


 * Operation: WINDOW PANE (October 20, 2552) - A mission undertaken by the ODST fireteam Alpha-Five with the goal of acquiring the Forerunner artifact known as the Conduit from the Covenant.