Wraith Gas attack on the Canberra Front

Above-  Stygian forces use Wraith gas in support of a probe on a forward Imperial trench in the Canberra river valley on Vexus Prime.  During the intensity of the fighting along what was known as the Canberra front, chemical attacks by both sides were common.  The Stygian empire's use of Wraith Gas as it was known was particularly gruesome.  Wraith Gas was a short duration blister and suffocation agent enhanced with warp craft to allow the gas an animal level intelligence and the hatred of life of a lower denizens of the warp which inhabited the gas.  This led to the terrifying apparition of "Wraiths" in the chemical attack.