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The Scouring of the Ollanz Cluster was a minor but bloody battle of the Horus Heresy fought in 012.M31 as part of the rebellious Warmaster Horus' final drive on the throneworld of Terra.

Horus' advance on Terra reached the Ollanz Cluster at this time, encountering Loyalist reinforcements bound for Beta-Garmon rearming and refuelling at the Borman System. The Loyalist fleet rapidly redeployed to oppose the Traitors' advance and to protect the valuable, resource-rich worlds of the star cluster.

The turning point of the brief but intense conflict came at Borman IV, when a demi-legion of the Legio Astorum, who were also known as the "Warp Runners," launched a daring offensive towards the world's beleaguered capital city.

The crucial Titan battle took place in the volcanic Yrevendi Desert immediately to the north of the capital, as Princeps Seniores Varr Harax led a surprise thrust through rough terrain at a weak point in the Traitor Legio Fureans lines, accompanied by ground forces drawn from the Iron Hands Legion.

The "Tiger Eyes", as the Legio Fureans was also known, had been drawn away by a bold diversionary attack and were annihilated by the Warp Runners, who were able to break through the Traitor Emperor's Children Legion lines and reinforce the beleaguered capital city.

Ultimately Borman IV and the entire Ollanz Cluster were delivered from the Traitors' possession, allowing for Loyalist forces to be redeployed to their original destination at Beta-Garmon in time for the final battle that Horus would face on the road to Terra.

Sources

  • Adeptus Titanicus - The Horus Heresy: Rulebook (Specialty Game), pg. 17
Battles of the Horus Heresy
005-006.M31 Istvaan III AtrocityBurning of ProsperoWar Within the WebwayBattle of the Somnus CitadelUnrest on CalibanSignus CampaignSchism of MarsBattle of DiamatDrop Site MassacreFirst Battle of ParamarBattle of the Coronid Deeps
007-008.M31 Battle of PhallBattle of RavendelveBattle of the Alaxxes NebulaSiege of the Perfect FortressChondax CampaignSecond Battle of ProsperoFirst Siege of Hydra CordatusBattle of the Furious AbyssBattle of CalthBattle of ArmaturaShadow CrusadePercepton CampaignBattle of IydrisThramas CrusadeFall of Baztel IIIBattle of VannaheimSecond Battle of ParamarBattle of Constanix IISiege of Epsilon-Stranivar IXTreachery at Port MawManachean WarMezoan CampaignBattle of BodtBattle of DwellBattle of Molech
009-010.M31 Xana IncursionCarnage of MoroxSangraal CampaignLiberation of NuminalBattle of ArissakBattle of PerditusBattle of SothaScouring of Gilden's StarBattle of NyrconBattle of TallarnBattle of NocturneSolar WarBattle of Pluto
011-014.M31 Malagant ConflictBattle of the Kalium GateBattle of CatallusBattle of TralsakTarren SuppressionBalthor Sigma InterventionScouring of the Ollanz ClusterBattle of ZepathBattle of AnuariBattle of PyrrhanSecond Battle of DavinBattle of TrisolianBattle of YarantBattle of KradeBattle of DelugeBattle of Heta-GladiusBattle of the Aragna ChainBattle of KallethBattle of the Diavanos SystemBattle of DesperationBattle of Beta-GarmonBattle of TerraGreat Scouring
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