Grand Battalion

Chaos Portal Iron Warriors

A Grand Battalion was a combat unit within the Iron Warriors Legion during the Great Crusade and Horus Heresy. They were the most important formation type in the Legion, ranking above and consisting of the Grand Companies. Grand Battalions functioned similarly to Chapters in other Legions, but had a larger stockpile of armor, artillery, and logistical support. As a result of high attrition rates, the strength of Grand Battalions fluctuated widely: Some had as little as 500 Legionaries and others had an excess of 4,000. Severely depleted Grand Battalions were folded together into active units.^[1b]

Known Grand Battalions

• 1st Grand Battalion^[2]
• 2nd Grand Battalion^[2]
• 3rd Grand Battalion^[1e]
• 7th Grand Battalion^[1d]
• 14th Grand Battalion^[1f]
• 23rd Grand Battalion^[1c][2]
• 33rd Grand Battalion^[4][5]
• 43rd Grand Battalion^[6a]
• 45th Grand Battalion^[2]
• 72th Grand Battalion^[6b]
• 77th Grand Battalion^[1a]
• 102nd Grand Battalion^[7]
• 114th Grand Battalion^[3]
• 118th Grand Battalion^[1f]
• 126th Grand Battalion^[2]
• 235th Grand Battalion^[2]
• 282nd Grand Battalion^[1f]

Sources

• 1: The Horus Heresy Book Three - Extermination
  • 1a: pg. 22
  • 1b: pg. 112
  • 1c: pg. 113
  • 1d: pg. 119
  • 1e: pg. 121
  • 1f: pg. 251
• 2: Angel Exterminatus (Novel), Dramatis Personae
• 3: The Horus Heresy Book Six - Retribution, pg. 34
• 4: Warhammer Community: Prove That the Iron Warriors Are the True Masters of Siege Warfare in This Horus Heresy Exemplary Battle (Posted on 02/11/2021) - The Siege of Hydra Cordatus: Sundering of the Cadmean Citadel PDF, pgs. 2-4 (Last accessed on 2 November 2021)
• 5: Perturabo: Stone and Iron (Audio Drama)
• 6: Horus Heresy: Aeronautica Imperialis
  • 6a: pg. 8
  • 6b: pgs. 40-55
• 7: Blackshields: The Broken Chain (Audio Drama)