Horus Heresy · atlas

010.M31 · The Road to Terra · date disputed

Battle of Tallarn

Place: Tallarn · Segmentum Tempestus

Fig. 1 · Place on the map

Loyalist victory The largest tank war in history: Perturabo retreats without the “Black Oculus”.

Perturabo’s Iron Warriors dropped out of the warp and with virus bombs turned the Imperial staging world of Tallarn into a poisoned desert, seeking a buried Dark Age artefact — the “Black Oculus”. The survivors in underground shelters waged the largest armoured war in the history of the Imperium — over a million vehicles — bleeding the Iron Warriors until a search exposed by the Alpha Legion forced Perturabo to retreat.

Open in the atlas

Sides

Type
Battle
Scale
4 of 5
Casualties
Very heavy on both sides; the surface of Tallarn destroyed, a million vehicles turned to scrap.

Significance

An important Imperial victory; the birth of the renowned Tallarn Desert Raiders.

Disputed in the canon

  • 010–011.M31 (Lexicanum infobox; virus bombardment 326.010.M31, withdrawal 408.011.M31); Fandom stretches it to 012.M31. Tallarn is in the Segmentum Tempestus.

Sources

  1. Lexicanum: Battle of Tallarn
  2. Fandom: Tallarn
  3. Tallarn: Ironclad (J. French)