Rise of the Sol Devoratores

The Rise of the Sol Devoratores was an Imperial xenocidal purgation campaign carried out by the Omni Legion Space Marine Chapter and their allies form the forge world of Roitheta to rid an unnamed Imperial world of the foul presence of Orks.

History
During a campaign in the Ultima Segmentum that involved the Omni Legion's 1st, 3rd and 4th Formations, they came to the assistance of a besieged Imperial world, assisting the valiant Astra Militarum defenders until they could receive additional reinforcements from a nearby Titan Legion. A small force of the Titan Legion's Warhounds and hundreds of Imperial Knights that once belonged to Knight House Solaire, would make planetfall to aid their Imperial allies. Warhounds would lay waste to the enemy Gargants due to the concentrated fire of their powerful weapons. Knights would take to the battlefields front lines alongside the Omni Legion to fight off the Ork threat that could have overpowered them without their help.

Many weeks would pass till the conclusion of the battle, much of their world had been ravaged by the xenos. With the aid from the Forge World Roitheta and the Chapter the world was considered saved. Despite this much of the continent was purged with flame by the Chapter and the Titan Legion to ensure no Ork spores survived.