Changes

With the Wolves bolstering the defences, the Grey Knights teleported to the centre of the Daemonic horde, . The Grey Knights eventually banishing banished Angron and his army from the material world, leaving the cultists to be crushed by the Imperial counterattack. Victory was imminent, but one final tragedy was to strike the planet.

But one final tragedy was to strike the planet. In order to preserve the secret of the Daemon Primarch and the Grey Knights, the entire population of Armageddon, as well as all the surviving soldiers, was rounded up, sterilized, and sentenced to work camps for the rest of their lives while a new population was brought to re-settle the planet.{{C|}} Despite these cautions, several thousand Guardsmen managed to slip through the containment action, forcing the [[Inquisition]] to take more drastic measures in order to preserve the secrets of the daemons and the Grey Knights. Many Imperial Guard troopships were destroyed as they departed by Grey Knight [[Strike cruiser|strike cruisers]], and in the [[Tremayne sector]], three entire worlds were put to the sword to ensure the silence of a single company of [[Storm Trooper]]s who had fought at [[Helsreach Hive]] alongside the Grey Knights.⁵