Battle for Laxion

The Battle of Laxion was a xenodical purgation campaign and one of the earliest recorded Imperial campaigns carried out by the Corrosive Thorns Space Marine Chapter. When the Imperial world of Laxion was best by a series of insurrectionist uprisings, the Corrosive Thorns were dispatched to help stamp out the insurrectionists, but quickly discovered the true cause behind the uprisings was due to the work of an insidious Genestealer Cult that had infiltrated the planet several decades earlier. Eventually the Corrosive Thorns would emerge victorious after conducting a thorough purging of the vile xenos from the planet.

History
The Corrosive Thorns landed upon Laxion to aid with the destruction of Genestealer Cults that spread around the world, the Astartes would conduct a series of sieges against big Cult nests in order to weaken the communication between the smaller outposts and also to eradicate the major part of the threat while remaining somewhat undetected. The Chapter would destroy all signs of a Cult ever taking root upon the planet.