Changes

After the close of the [[Damocles Gulf Crusade]], Vior'los was left in the custody of the [[Adeptus Mechanicus]], with supporting elements from both the [[Astra Militarum]] and [[Adeptus Astartes]].{{Fn|3a}} The Mechanicus managed the world's many geothermal generators as well as carried out the purge campaign of Tau T'au civilians left behind, rounding up the Tau T'au and disposing of them by throwing them into the volcanic calderas. Nominally, this was for increasing the yield of the generators, but it was an obvious punitive measure against the aliens. During the [[Farsight Expedition]], Commander Farsight would begin the revanchist war by invading Vior'los.{{Fn|3b}}

Farsight met with [[Shas'o]] [[Moata]] to coordinate with the remaining Tau T'au resistance on the surface of Vior'los and began coordinating to push the [[Imperium]] out of the system once again, but found difficulty in overcoming the heavy reinforcements of [[Skitarii]] troops.{{Fn|3b}} Under advisement, Farsight allowed Por'vre [[Malcaor]] to make a planetary broadcast that inspired the many millions of labor ratings labourers to start a slave revolt. With many Skitarii forces tied up in the rebellion, it allowed Farisght the chance to finally make a decisive strike.{{Fn|3d}} This was accomplished by utilizing utilising tectonic devices invented by [[O'Vesa]] to trigger many of Vior'los's volcanoes to scour the world of the Skitarii.{{Fn|3c}} However, the [[Scar Lords]] [[Space Marine]]s Marines arrived in time to hold a counter-invasion to support Mechanicus forces, but these forces were defeated by Farsight.{{Fn|3e}}

After the defeat of the Scar Lords ground forces, Scar Lords [[Chapter Master]] [[Caelos]] ordered [[Exterminatus]] on Vior'los to deny the world to the TauT'au. Having anticipated the response, Farsight sent [[Ob'lotai|Ob'lotai 3-0]] on a mission to board the Scar Lords' ship through a [[macrocannon]] barrel. Ob'lotai used his [[fusion blaster]] to detonate the [[virus bomb]] prematurely, destroying the ship and eradicating the surviving [[Scar Lords]].{{Fn|3e}}