Knights of the Raven - Notable Campaigns: Jeghan Insurrection (Unknown Date.M41) - At the outset of the 41st Millennium the Imperial Hive World of Jeghan rose in revolt. The roots of the rebellion lay in resentment at what were felt to be excessive demands for tithed troops to fight in the campaigns against the Great Tyrant of Jagga. These flames of resentment were fanned by subversive elements in the population, leading to outright rebellion. The Knights of the Raven Chapter acted quickly to crush the rebellion, which was quickly suppressed everywhere with the exception of Jeghan Hive Secundus. It was here that the rebellion had started, and where the rebels were strongest. The Knights of the Raven soon found themselves embroiled in a protracted siege against a tenacious and well dug-in foe. There are no records that establish who first developed the Hellstorm combined-fire tactic that was employed by the Knights of the Raven as part of this campaign. All that can be said with certainty is that it was an effective tactic that was quickly adopted by Land Raider Redeemer squadrons throughout the Chapter. The tactic relied on split-second timing to launch a simultaneous attack by all of the Flamestorm Cannons in the squadron against a single target point. The resulting inferno of fire was so intense that nothing was capable of withstanding it, no matter how well armoured or protected it might be. Within weeks of the tactic being developed Hive Secundus fell and the rebels capitulated.Redemption Rebellion (744.M41) - The Knights of the Raven and the Aurora Chapter fought a joint-campaign to defeat the vile Alpha Legion, but soon after declaring victory, both Chapters swore a bitter feud against each other, blaming one another for their grievous losses. The Unseen Spears, the Reclusiam Command Squad of the Knights of the Raven's 2nd Company were responsible for escalating tensions between themselves and their battle-brothers from the Aurora Chapter. Space Marines of the Aurora Chapter accused Chaplain Givus of the Unseen Spears of cultivating superstition and fanaticism on their feudal home world. The Unseen Spears took this as a grave insult to their Chapter and came to blows with the Aurora Chapter. It was Marneus Calgar himself, Chapter Master of the Ultramarines, who intervened with an impassioned speech. He suggested, as penance, that the entire Knights of the Raven Chapter be despatched to fight against Hive Fleet Kraken. The Unseen Spears immediately led the salvation of the Death World of Vallyx V, where the Knights of the Raven and their allies slaughtered thousands upon thousands of Genestealers. The Unseen Spears endure to this day, and with their Chaplain at the helm they lead blistering strikes against Kraken's splinter fleets in an effort to bring honour back to their Chapter.Achilus Crusade (814.M41) - The Knights of the Raven were represented in the war zones of the Jericho Reach and the ranks of the Achilus Crusade by a small task force that emerged unheralded through the Jericho-Maw Warp Gate in 814.M41. This sub-company battle force has fought many campaigns alongside other, larger forces, drawn from a variety of brother Chapters. As best as can be determined, the Knights of the Raven consider it their solemn duty to commit forces to the crusade, for to stand by as others fight and die in the name of the Emperor is a far darker shame than any defeat that could be suffered at the hands of the foe.Zeist Campaign (999.M41) - The Zeist Campaign was a military conflict fought between the Imperium of Man and the T'au Empire, in the Zeist Sector of the Ultima Segmentum in early 999.M41. This campaign occurred during the T'au Empire's Third Sphere Expansion. This campaign ran concurrently with Abaddon the Despoiler's 13th Black Crusade and the assault on Imperial space by the Tyranids of Hive Fleet Leviathan. While the Imperium's military was heavily involved with preventing the breakout of the forces of Chaos from the Cadian Gate on the other side of Imperial space, the T'au took advantage of this distraction to rapidly expand their territory. The Knights of the Raven contributed three companies to the Zeist Campaign against the T'au Empire, a war led by 2nd Company Captain Cato Sicarius of the Ultramarines. With the victory of the Imperium, the Zeist Campaign marked the end of the T'au's Third Sphere Expansion.War for the Aberrus System (Unknown Date.M42) - Captain Nikeras of the Iron Lords' 2nd Company led a strike force composed of elements from the 2nd, 8th and 10th Companies to the Aberrus System alongside forces drawn from the Lamenters, the Vanguard Strike Force Tristyan and Armoured Task Force Corarikus of the Knights of the Raven and elements of the Scythes of the Emperor Chapter. There, the Adeptus Astartes served as crucial reinforcements in defending the system from an assault by a tendril of Hive Fleet Kraken. While the Space Marines helped to stabilise the ongoing conflict and raise Imperial morale, they did not realise that Inquisitor Shalisha Talaris of the Ordo Xenos had learned from her void watchers that a second tendril of the Kraken, twice the size of the first, was about to assault Aberrus. She feared that if the Tyranids could not be defeated, the hive fleet would sweep into the Grendl Stars and claim the genetic material of the hyperviolent Barghesi for themselves, putting the fate of the entire Eastern Fringe at risk.Fourth Tyrannic War (Unknown Date.M42) - During the Fourth Tyrannic War in the Era Indomitus, the Knights of the Raven waged a guerilla war against Tyranid swarms across the Segmentum Pacificus.