|This article is about the Space Marines Chapter; for the Non-Imperial Human Civilization, see Iron Lords (Araneus Continuity).|
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The Iron Lords are known for their exceptionally stern demeanor and xenophobia. Ever since M38, it has been their duty to maintain the blockade of the Grendl Stars, confining the vile Barghesi within until the Imperium can muster enough resources to annihilate them. In recent years, they have battled the tendrils of Hive Fleet Kraken as it sweeps to the Grendl Stars, leading the Iron Lords to engage in one desperate battle after another with ever greater swarms of bio-engineered horrors. Should Kraken be allowed to assimilate the potential of the Barghesi, the results would be dire.
- 801.M41 - participating in Judgement of Hellenus. During this campaign the Iron Lords part of the force's brothers-marines becomes tainted by the local mutants' hideous gene-taint, so the fellow Iron Lords were forced to purge them too.[4a]
- 997.M41 - during the Defence of Valedor Iron Lords lost their battle barge[4b]
- The Zeist Campaign (999.M41)[1c]: The Iron Lords heeded the call of Lord Macragge, and provided Devastator Squads to fight for the liberation of Augura (a staging point for the Tau forces).
- The Second Relief of Mordian (M42): The Iron Lords aid the Iron Hands and other successor chapters from the sons of Ferrus Manus against Chaos forces on Mordian.
- Undated - Imperial records indicate that it is by the efforts of the Iron Lords that the Barghesi are confined to the Grendl Stars.[1a]
- Undated - The Iron Lords stymied Hive Fleet Kraken from harvesting the Barghesi's biological potential.[1a]
- Undated - Four squads of the 3rd Company assaulted the nesting-ctypts of a previously unknown xeno species attacking the frontier worlds of Imperium along the Trailing Marches of the Eurydice Sector. The alien race was exterminated.[4c]
- 1: Codex: Space Marines (5th Edition)
- 2: Codex: Space Marines (6th Edition), pg. 71
- 3: Insignium Astartes, pg. 54
- 4: Imperial Armour Volume Two - Second Edition
- 5: Codex Supplement: Iron Hands (8th Edition) pg.32-33