Defense of Colossus

The Defense of Colossus was an Imperial defensive campaign conducted by the Guardians of Osiris Space Marine Chapter in the defence of the vitally important forge world of Colossus, which is located in the Chapter's demesne in the Osiris System, from a hordes of Daemons of Tzeentch.

History
Colossus was a forge world located in the Osiris System. It is a vitally important Adeptus Mechanicus fane, notable for its mass-production of dreadnoughts, Titans and other types of equipment for the Guardians of Osiris' arsenal. But in the year 365.M39, the forge world was attacked by a Chaos Space Marine Warband know as the Eyes of Anubis. The Eyes of Anubis flooded the forge world with daemons of Tzeentch, followed by their Chaos Lord: Anubis Kemet, the Watcher of Change. The battle took 20 Terran months, and it only ended with the battle between the Chaos Lord and the Veteran Sergeant - Sigurd Njordson. Where Sigurd would face the Chaos Lord gravely wounding him in a melee combat. After the fight with Kemet the 2nd company of the Guardians of Osiris leaded by their captain, Ragnar Bestla would fight against the forces of the Eyes of Anubis, making them retreat and go back into the depth of the Warp.