Iron Knights - Notable Campaigns: War of the Beast (544-546.M32) - The Iron Knights responded to the call by the Imperial Fists for all of its Successor Chapters to move on the Sol System to defend Terra against an assault by the Orks in service to the Warlord known as The Beast. During the conflict, the Iron Knights contributed a portion of their strength to rebuild the shattered strength of the Imperial Fists.Tower of Blood (Unknown Date) - Commander Goedendag Morningstar of the Iron Knights sealed a Warp rift located on the Hive World of Minea.Constantinus Iconoclasm (746.M41) - The Sons of Guilliman freed Nova Terra from a Tyranid attack. Afterwards, Squad Constantinus hunted down remnants of the hive fleet, finding Genestealer Cults within the noble families of the capital city. The entire ruling class was executed. The outraged population rose up against their Space Marine liberators. His patience gone, Sergeant Constantinus blamed the Imperium for making him a monstrous killer and denounced the Emperor. He swore to lead the populace to a better future, and his conviction was infectious. The old order was thrown down and statues of Constantinus the Liberator were raised in their place. Other servants of the Ruinous Powers soon arrived, drawn by the anarchy and bloodshed. The rebel Astartes sergeant's megalomania escalated until it plunged the whole sector into open war. The mass rebellion ended only after Imperial forces led by the Iron Knights Chapter were sent to stabilise the area and reconquer the sector. Their campaign lasted 13 standard years and culminated with the death of Constantinus at the hands of the Officio Assassinorum.812th Feast of Blades (749.M41) - All twelve competing Chapters were in attendance at the Feast of Blades. The Iron Knights' champion, Hervald Strom, won the competition after narrowly defeating the Imperial Fists' champion, Demitrius Valor, in a ritual duel.813th Feast of Blades (849.M41) - Despite suffering heavy wounds in the Vinculus Crusade, Hervald Strom emerged triumphant once more. Never before has one Chapter, let alone one champion, prevailed in two successive assemblages.Thrassos Disaster (928.M41) - In 928.M41, WAAAGH! Dregdakka ploughed headlong into the Adransa Cluster, causing untold devastation. On the planet of Thrassos a combined force of Space Marines from the Iron Knights and Liberators Chapters attempted to halt the Orks' steamroller advance. A horde of Orks including Dregdakka himself were lured onto a huge refinery platform before Techmarines destroyed all bridges linking the platform to the mainland. Space Marine Kill-teams then deployed across the hulking structure, tasked with slaughtering the trapped Greenskins and assassinating Dregdakka. Yet the Adeptus Astartes had woefully underestimated their foe, the Greenskins digging in and fighting back with unexpected tenacity. Though they killed thousands of Orks, over three hundred Space Marines were slain and their comrades were overwhelmed as yet more Ork vessels poured into the system. His trophy poles rattling with freshly harvested Space Marine helms, Warlord Dregdakka's position was now unassailable. His WAAAGH! completely overran the Adransa Cluster within the year.Nightfire Wars (Unknown Date.M41) - The Nightfire Wars were fought between the Imperium and the T'au Farsight Enclaves. The Iron Knights and Hammers of Dorn saw bitter combat in the campaign.13th Black Crusade (999.M41) - The Chapter was on a self-imposed penitence crusade for a number of solar decades after a group of its Astartes fell to Chaos during the 13th Black Crusade. The Iron Knights fielded 1 company against the forces of Chaos in this campaign.Defence of Amistel Majoris (999.M41) - The Chapter's elite 1st Company became mired in the defence of Amistel Majoris, bolstering the flagging defences of the Howling Griffons Chapter as they fought a grueling trench war against the unremitting assaults of the Plague Marines of the Death Guard Traitor Legion. The warzone soon became a plague-ridden quagmire, the decomposing bodies of the Plague God's victims forming putrid, sucking swamps through which the defenders were forced to wade in order to bring battle to their foes. A sickly patina of filth soon marred the gleaming blue-grey Power Armour of the Iron Knights, and the company's Chaplains were forced to perform daily rites of purification in order to keep the virulent plague at bay. Recent sermons by these Chaplains have linked the Chapter's continuing presence in the warzone with their eventual redemption, vowing that the world will only fall at the cost of the entire Chapter. By the third week of the Black Crusade, Amistel Majoris was considered sufficiently secure that a portion of its Space Marine defenders could be spared to reinforce the Cadian System, which, in the days following the destruction of Saint Josmane's Hope was in desperate need of reinforcement.