Changes

The war began within the hated region known as the [[Eye of Terror]]. The forces within, being devoted to Chaos, usually fight each other, but occasionally and inexplicably they put aside their rivalries to form an assault on their common enemy, the [[Imperium]]. In this case, the unity of the powers of [[Chaos]] was triggered by the arrival of the [[Space Hulk]] ''[[Devourer of Stars]]'' around a [[Daemon World]]. The Hulk was large enough to carry a huge chaos force to attack Imperial worlds. The capricious currents of the [[warp]] drew the invasion force to the Imperial Hive World of Armageddon in 444.[[M41]].^{{Fn|2}}

Meanwhile, on Armageddon, a series of strange events culminated in armed rebellion breaking out in half a dozen hives. Armageddon consists of three main landmasses. Most human life is located on the main continent, which is split into two parts, Armageddon Prime and Armageddon Secundus, separated by the thick band of jungle known simply as the Equatorial Jungle. The revolts were quickly put down in Armageddon Secundus, but amongst the more widely scattered hives of Armageddon Prime they proved more difficult to eradicate. As the planetary defense forces seemed capable of dealing with the revolt, no additional units were sent by the Imperium. Armageddon was a very long way from the Eye of Terror, and no one suspected the cause for the revolts was more sinister than simple civil unrest.{{Fn|9}}

Busy containing the rebellion, Imperial forces were caught by surprise when the ''Devourer of Stars'' arrived in the Armageddon system.{{Fn|9}}

The insidious effects of Chaos were quickly felt as nearly half the [[Planetary Defence Forces|Planetary Defence Force]] went over to the invaders. The bloodlust-driven World Eaters descended upon the planets populous with a fury, butchering millions in the first weeks.{{Fn|2}} The few remaining loyal defenders were quickly routed from Armageddon Prime. Falling back through the jungles in the south, the survivors joined up with the units from Armageddon Secundus and prepared to make a last ditch defence along the rivers of the Styx and Chaeron.{{Fn|9}}

It was now that the Imperium unleashed his secret weapon. When Logan Grimnar realized the nature of their foe, he called for the support of the [[Grey Knights]], as only the Chapter Militant of the [[Inquisition|Inquisition's]] [[Ordo Malleus|daemonhunters]] had the ability to truly defeat a daemonic entity as powerful as Angron.{{Fn|9}}

The Grey Knights dispatched one hundred and nine{{Fn|3a}} [[Grey Knight Terminator Squad|Terminator Assault Marines]] who attacked Angron directly, along with the [[Cruor Praetoria]], his bodyguard of a dozen [[Bloodthirster|Bloodthirsters]], by teleporting into the center of the daemon army. At the same time, the Space Wolves led a massive Imperial counter-attack. Initially Angron and his escorts decimated the Grey Knights, the Primarch wiping out five Grey Knights Terminators with a single stroke of his [[Black Blade]]. However thanks to the psychic might of the young recruit [[Hyperion]], the Black Blade was shattered and the Grey Knights were now at a significant advantage.{{Fn|3b}} Soon after, Brother-Captain [[Taremar Aurellian]] was killed while personally banishing Angron back to the warp for a hundred years and a day. The loss of their leader, coupled with the surprise assault from the remaining imperial forces, led to the near-complete annihilation of the chaos forces on Armageddon. Though the final battle was a major Imperial Victory, only thirteenGrey Knights survived{{Fn|3b}} Grey Knights survived.

*{{Endn|3}}: [[The Emperor's Gift (Novel)]] by [[Aaron Dembski-Bowden]]