War of Brass
The War of Brass was a battle between the Imperium and secessionist and Chaos forces during 738-741.M40.
The Hive Worlds of the Gelmiro Cluster in the Calixis Sector fall into sedition, following the charismatic leadership of a figure calling himself the Emperor of Brass, debasing themselves into the worship of the Ruinous Powers. Heavily militarised, the renegades quickly sponsor and arm rebel groups on nearby worlds and when counter-attacked, reveal the hand of dark forces from the Eye of Terror in their ranks. The so-called War of Brass that followed was comparably brief but bloody, involving forces drawn from across the sector, and the involvement of the Adeptus Astartes and the Titans of Legio Venator, it rendered the once thriving worlds of Gelmiro blasted, rubble strewn rocks. Classified as War Worlds and the haunt of murderous scav-mutants, renegades and wreakers ever since, while the reign of the Emperor of Brass is long over, the system is still a shunned no-man’s land to this day.
- 1: Dark Heresy Timeline, pg. 5