Purge of Tainted Steel

The Purge of Tainted Steel was a xenocidal castigation campaign conducted by the Sons of Iron Space Marine Chapter against the undying legions of the Necrons upon the Sons of Iron's Chapter homeworld of Suami.

History
A Necron Dynasty awakes in the systems near Suami. On the Chapter world itself, ancient tombs systems are reactivated and cohorts of machines never seen before emerge to attack the humans. Kardan Rauth leads a vicious counter-offensive on his world and once it is squashed, summons all the Chapter and send a call to arms to all Imperial Forces able to send troops. The Crusade then begins to attack the Atunkar armies. The need to discover ambushed forces leads to the creation of the unsanctioned Auspex Voidshadow. After twenty five long years, the Purge of Tainted Steel comes to an end when the Iron Sergeant Alvar Hagström kill the Phaeron by using his own weapon against him. Their last world, the Dead-World of Thanos VI being annihilated at last, only token forces of the Atunkar manage to flee the fury of the Imperium.