War on Vengeance

The War on Vengeance was a joint-Imperial, xenocidal campaign carried out by both the Sons of the Creed and valiant Ultramarines Space Marine Chapters, which took place in mid-M33 upon the world of Veegur II, agaisnt the vile xenos race designated the Veegetur. Following their victory, Imperial citizens were imported in-system to colonise the planet. The world was renamed 'Vengeance' and was claimed by the Sons of the Creed by right of conquest as their new Chapter homeworld.

History
The Sons of the Creed fully emerged into the light of history in mid-M33 when a strike cruiser carrying the Sons' 4th Company joined the fleet the Ultramarines sent against Veegur II, the home planet of the Veegetur, a vegetative alien race whose recent conquests on the edge of Ultramar space had endangered the Forge world of Accatran. The sapient plant life of that world proved a formidable but not unbeatable enemy, the final Imperial victory being aided in no small part by the living weapons engineered by the genetors of the Adeptus Mechanicus. By the time that victory was achieved the Sons of the Creed had more or less taken over direction of the war from the Ultramarines. They imported human colonists to replace the former xenos occupants and adopted Veegur II, renamed Vengeance, as their Chapter's home world.