Changes

==Horus Heresy==

[[Image:angel-500.jpg|thumb|250px|Right|Perturabo and his brother [[Fulgrim]], after their fall to [[Chaos]], battle [[Eldar]] Revenants (not to be confused with 'Revenant Titans').{{Fn|4}}]]

Shortly after the [[Sak'trada Deeps Campaign]] Perturabo learned that his homeworld, Olympia, was in rebellion. Dammekos was dead and in his absence the politicking and bickering of the city-states had resumed. Perturabo demanded the Olympians themselves enact decimation, killing one in every ten of their own or face extermination and enslavement. Many refused, and Perturabo purged Olympia city by city, overrunning the fortresses he had built and sparing no one. Iron Warriors that refused to take part in the genocide suffered the same fate.{{Fn|12b}} By the time the massacre was over, five million Olympians had been killed and the rest put into [[slavery]]. While storming [[Lochos]]' palace, Perturabo came across his old foster sister [[Calliphone]] and strangled her to death after a furious argument where she blamed the Primarch for what had befallen their world. As Olympia died, Perturabo looked on in cold silence. After the pyres were burning, the Iron Warriors realized what they had done. They were no more the saviours of the [[Imperium]] - they had been destroying the Hrud one moment and the next they were committing genocide on their own. Perturabo realized the Emperor could never forgive him for what he had done.{{Fn|12c}} Horus, on the other hand, commended Perturabo for his decisive action and the Lord of Iron swore an oath of loyalty to the [[Warmaster]]. After the [[Dropsite Massacre]], Horus would present Perturabo with a hammer named [[Forgebreaker]], the gift symbolic of a signing of a pact between them. {{Fn|7b}}

It was in that time that disturbing news of the [[Horus Heresy]] and new orders came from Terra. Leman Russ and the Space Wolves had attacked [[Magnus]] and his [[Thousand Sons]] on [[Prospero]]. [[Horus]] had turned renegade with his legion the [[Sons of Horus]] besides some other legions. The whole of the Imperium was on the brink of a civil-war. The new orders were to join with six other legions and then to face Horus and his forces on [[Isstvan V]]. The result of the following [[Drop Site Massacre|battle]] was that the Iron Warriors, Night Lords, Word Bearers and Alpha Legion all joined Horus and almost completely destroyed the three remaining loyal legions on the '''Drop Site Massacre'''{{Cite This}}. After that the Iron Warriors were let loose and Perturabo relished the opportunity to fight in a way that did not rely on massive sieges and trench warfare. Because of their massive deployment throughout the galaxy, dozens of [[Warsmith]]s took over planets and demanded tithes to support the heresy.

After the [[First Siege of Hydra Cordatus]] Perturabo was approached by [[Fulgrim]], Primarch of the [[Emperor's Children]], who promised the Lord of Iron near unlimited power. The two embarked on a quest to tip the balance of the rebellion in Horus' favor by journeying into the [[Eye of Terror]] and retrieve a weapon known as the '''Angel Exterminatus'''. After a brief boarding action with the ''[[Sisypheum]]'' (which Perturabo allowed to escape due to his disgust of Fulgrim's Legion), the duo arrived in the Eye and quickly landed on the [[Crone World]] of [[Iydris]]. Entering an ancient [[Eldar]] citadel known as the ''Amon ny'shak Kaelis'', the Emperor's Children and Iron Warriors [[Battle of Iydris|had to contend]] with an army of [[Wraithguard]] and [[Wraithlord]]s that had awoken from their slumber. At the height of the vicious battle Fulgrim attempted to betray his brother and slip away, but was pursued by Perturabo. Both soon arrived in a massive spherical chamber, and Fulgrim revealed to his brother that there was no Angel Exterminatus, but he rather was destined to become such a weapon on this world. Furious, Perturabo attempted to attack Fulgrim but was drained of his power when Fulgrim activated the ''Maugetar'' stone that Perturabo had previously received under the guise of a gift. Now with the Iron Warriors Primarchs' power in hand, Fulgrim revealed the purpose of his plan: to achieve ''Apotheosis'', better known as [[Daemon Prince|Daemonhood]].{{Fn|7}}

However just as Fulgrim was about to complete his ritual and achieve Daemonhood, Perturabo gathered enough strength to charge at his brother but were interrupted by an ambush of [[Salamanders]], [[Iron Hands]], and [[Raven Guard]] who had been stalking the traitor fleet in search of vengeance since the [[Drop Site Massacre]]. One of the loyalist Astartes during the battle shattered the ''Maugetar stone'', freeing some of Perturabo's energy and giving him the ability to strike down Fulgrim with his [[Thunder Hammer]]. However Perturabo only managed to destroy the Primarchs mortal skin and was reborn as a Daemon Prince. Now a massive but elegant serpentine creature, Fulgrim told his brother that they would meet again then vanished in a burst of [[Warp]] energy along with his Emperor's Children. Exhausted and betrayed by his brother he knew had now lost any trace of honor, Perturabo allowed the loyalist Astartes to withdraw and led his own forces off the Crone World. Looking to settle the score with Fulgrim and better understand the cosmic power he had witnessed, Perturabo ordered his fleet sail deep into the Eye of Terror.{{Fn|7}}

[[Image:HHLPerturabo.jpg|thumb|right|250px|Perturabo during the Heresy{{Fn|21}}]]

Perturabo and the Iron Warriors next found themselves trapped by the singularity in the heart of the Eye of Terror. Perturabo gambles in his attempt to escape, diving straight into the Black Hole at its heart. Perhaps by sheer blind luck, they were transported far across the warp to the [[Tallarn]] System. Once arriving at Tallarn, Perturabo was made aware of the [[Cursus of Alganar|Black Oculus]] hidden beneath the planet, and he immediately drew up plans to [[Battle of Tallarn|invade]].{{Fn|10}} Eventually the Iron Warriors' search for the Black Oculus was exposed, and they are forced to withdraw from the planet.

Following Tallarn, the Iron Warriors were ordered by Horus to man a defensive line of worlds in order to hold off the [[Ultramarines]], which with the death of the [[Ruinstorm]] were advancing towards the traitors rear. Perturabo dutifully oversaw these vicious, bitter sieges. Overstretched and under-equipped, the Iron Warriors once again bled for worlds far from the center of the war without thanks. Perturabo by this point had grown weary and darker, both from the effects of Fulgrim's treachery and the corrupting effects of the Black Oculus. Perturabo's war on [[Krade]] was interrupted by [[Argonis]], who brought orders from Horus to find [[Angron]] and bring both of their Legions for the muster at [[Ullanor]] in preparation for the drive on Terra. Despite having to abandon much of his forces as well as worlds he had fought so bitterly for, Perturabo obeyed the Warmaster and journeyed to [[Sarum]] with a small fleet in search of information of Angron's whereabouts. On Sarum, the [[Daemon]] [[Sa'ra'am]] revealed that Angron was on [[Deluge]] before possessing the body of [[Volk]], creating the first [[Obliterator]]. Perturabo then traveled to Deluge, where he confronted the vicious and corrupted [[Daemon Primarch]] Angron. Perturabo and Angron engaged in a brutal battle, with the Daemon having the clear edge in power and speed. However despite taking many wounds Perturabo endured and goaded Angron, declaring that he was born a slave and now was a slave to Darkness for all eternity. By using the Iron Warriors, [[Iron Circle]], and Volk to out-maneuver and bombard the World Eaters, Angron was bested as an Ultramarines fleet appeared in orbit over Deluge. Angron laughed and declared that they were all now going to die, but Perturabo reminded the Daemon Primarch that he had [[Nuceria|seen his warriors butchered while he had done nothing]] once before. This moved Angron enough to act, and after creating a [[Warp Storm]] the Iron Warriors and World Eaters fleets were able to escape the Ultramarines and move to [[Ullanor]], where they accompanied Horus for the muster.{{Fn|13}}

Perturabo proved to be a pivotal and primary traitor commander during the [[Solar War]]. During the campaign to capture the [[Sol System]], he oversaw the capture of both the [[Uranus]] and [[Jupiter]] defensive spheres from the [[Imperial Fists]].{{Fn|14}} During the early stages of the [[Siege of Terra]], Perturabo was not allowed to lead the siege of the [[Imperial Palace]] but instead fortify the Sol System against [[Guilliman]]'s expected arrival, something that embittered him greatly. Nonetheless, the Lord of Iron was able to review bombardment data and surmise a weakness in the Palace's [[Void Shield]] network. Horus later met with Perturabo personally aboard the ''[[Vengeful Spirit]]'', where while still compelled to obey Horus he now saw the Warmaster as little more than a slave to the Ruinous Powers. Perturabo studied all Warp lore he saw aboard the damned flagship, pledging to master the Empyrean and achieve powers similar to that of a god. Horus attempted to appeal to Perturabo's pride, emphasizing how much he appreciated the Lord of Iron's contributions and how he was the only Primarch he could still trust. Perturabo was however still denied the coveted duty of besieging the Palace, instead being ordered to clear landing zones for the traitor [[Titan]]s.{{Fn|15}}