Foresworn (World Eaters) - Notable Campaigns: First War for Armageddon (444.M41) - The Daemon Primarch Angron, the favoured Champion of Khorne, reunified his World Eaters after the Battle of Skalathrax, and led the XII Legion once again deep into the heart of the Imperium when he launched the invasion of the Hive World of Armageddon in 444.M41, in a lesser known conflict that would come to be known as the First War for Armageddon. Kossolax led his warband of Khornate Berserkers, the Foresworn, in a bloody campaign of slaughter across the doomed planet. But in the end, victory was denied to the forces of Chaos due to Angron's own foolish belief in his victory before completing a total conquest of the world and the successful intervention of the Grey Knights Chapter of Space Marines. The Grey Knights' assault banished Angron back to the Warp for one hundred standard years and led to the failure of the overall Chaos campaign. During the World Eaters' withdrawal a portion of the Foresworn warband was left behind on Armageddon.13th Black Crusade (ca. 999.M41) - The Foresworn was a part of the forces of Chaos gathered under the leadership of the Warmaster of Chaos, Abaddon the Despoiler, during the infamous 13th Black Crusade. This resulted in the largest mobilisation of both Imperial and Chaotic forces seen in the Milky Way Galaxy since the bygone era of the Horus Heresy.Assault on Agripinaa (ca. 999.M41) - Due to its proximity to the Cadian Gate, the Forge World of Agripinaa suffered greatly during Abaddon the Despoiler's 13th Black Crusade. This world was invaded by Kossolax the Foresworn and his large warband of Khornate Berserkers, who sacrificed millions of its citizens over 40 solar hours to summon a horde of Khornate Daemons, which included a mighty Bloodthirster. Four companies of the Blood Angels Chapter answered the call to defend Cadia, arriving towards the middle of the conflict. A significant force of Blood Angels immediately fell upon the Chaos hordes assaulting Agripinaa, seeking out the leader of the attacking forces, the notorious Khornate Chaos Lord Kossolax the Foresworn. In an epic confrontation likened to the mythic conflict between the Blood Angels' Primarch Sanguinius and the mighty Bloodthirster Ka'Bandha at the closing of the Eternity Gate during the climax of the Horus Heresy at the Siege of Terra, the Blood Angels took the fight directly to the enemy. Kossolax, fully aware that his bodyguard was no match for the frenzied sons of Sanguinius, called upon the slavering Daemons of Khorne for aid. The summoning rite was an act of wanton, traitorous carnage, as the Chaos Champion ordered his World Eaters to sacrifice the lives of their Chaos Cultist allies in order to gain the favour of the Blood God. Uncounted thousands were slaughtered in mere solar hours, their blood flowing in rivers through the corridors of Agripinaa's primary hive city. The sacrifice had the desired result, and as the first of the Blood Angels' Veteran Assault Squads soared into battle, a blasphemous avatar of the Blood God ripped its way through the skein of reality to confront the sons of Sanguinius. At the height of the battle, the Blood Angels' Sanguinary High Priest, Brother Numitor, confronted the Bloodthirster, and dealt it a blow that stunned it for a brief moment. Seizing the advantage, the brothers of the Blood Angels' Death Company leapt upon its back, but the Daemon recovered, and severed Numitor's arm with a crack of its long whip. The priest was holding one of the Blood Chalices bearing the sacred vitae of the Chapter's primarch, and the blessed liquid was spilled across the tarnished paving. At that moment, a deathly still overcame the scene, the Blood Angels momentarily shocked beyond action at the sight of their primarch's sacred blood seeping into the unhallowed ground. Then, the silence was broken, as Numitor staggered to his feet and bellowed the words of the Rite of Exsanguination. The assembled brethren of the Death Company were overcome with visions of the last time their primarch's blood had been spilt by a servant of Chaos, when Sanguinius had fallen at the hands of the Arch-Traitor Horus. The Death Company went berserk. They hacked down the Bloodthirster in a savage, rage-fuelled frenzy, oblivious to the fact that it dragged half their number down with it, before turning their hatred upon the warband of Kossolax the Foresworn. The World Eaters were expelled from Agripinaa at great cost to the Blood Angels, though the annals of the Chapter's history will long celebrate the casting out of the Greater Daemon. The warlord Kossolax was not found at the hive city, and the Sanguinary High Priest Numitor has vowed to hunt him down, no matter the cost.Nachmund Rift War (Unknown Date.M42) - The Nachmund Rift War is an ongoing conflict being waged by the Imperium in the Nachmund Sub-sector. Closely connected to the War of Beasts and War of Nightmares fought earlier on Vigilus, the Sentinel World is now safely under Imperial control for the most part, though the greater Nachmund Gauntlet corridor that provides one of the only stable routes through the Great Rift from the Imperium Sanctus to the Imperium Nihilus is itself besieged by the forces of Chaos as they still seek to cut off Imperial communications and reinforcements with the Dark Imperium. The forces of the World Eaters, including those of the Foresworn, participated in this campaign.Kalkin's Tribune (Unknown Date.M42) -  The Foresworn and their other World Eaters allies were responsible for the deaths of over one billion Imperial soldiers and 2,000 Imperial Navy warships at Kalkin's Tribune. Before the battle the World Eaters' Daemon Primarch Angron suddenly reemerged aboard the command deck of the ancient World Eaters' flagship Conqueror and slew Kossolax's four chief lieutenants. Initially furious at his gene-father's sudden return to activity in realspace, Kossolax realised he could use the return of Angron as the symbol he needed to restore the unity of the long-broken World Eaters Legion.Battle of Hyades (Unknown Date.M42) -  Angron lead a great army comprised of World Eaters warbands and Khornate Daemons to the surface of the world of Hyades, massacring the personnel who were station at the Imperial astropathic station present on the world. However, the World Eaters had actually been lured to Hyades by the Grey Knights, who set off a psychic beacon intended to annihilate the planet and most of the Foresworn with it. Kossolax and his inner circle were able to escape via teleportation, while Angron was only wounded by the psychic blast.