Liberation of Scurafar

The Liberation of Scurafar was an Imperial defensive campaign conducted by the newly incepted Dawn Guardians, a Space Marine Chapter created during the recent Ultima Founding and comprised entirely of newly revealed Primaris Space Marines. This campaign to defend the Imperial world of Scurafar, was just one of many, and was a part of the much larger Indomitus Crusade. The Chapter was later joined by another, unidentified Chapter (later revealed to be the Jackal Claws Chapter), which helped assist them in liberating the besieged world from the ravaging Orks.

Background
The Dawn Guardians, under the leadership of Captain Aragin, arrived on Scurafar to take on a massive horde of Orks. Unexpectedly they find the Orks already engaged by a force of unidentified Astartes who do not give their name. Their leader proves hard to contact but he eventually agrees to coordinate with the Dawn Guardians. Both Chapters drew the horde into the waiting guns of the Dawn Guardians who engaged the greenskins directly. Captain Aragin engaged the warboss in a bloody duel that saw him lose his right arm. However, before Aragin could finish the Ork Warboss, the other Chapter's leader jumped in at the last minute and beheaded the massive Ork with one blow. Though the Orks were soon finished, Aragin left with a hatred for the Astartes who called himself the Laughing Man.