Azoth Drop

Space Marines Portal

Chaos Portal

In 999.M37 the Revilers Chapter launched a bold planetstrike operation, against the Daemonic hordes infesting the planet Azoth. Despite taking shocking losses the Chapter emerges victorious, though many survivors must undergo mnemonic purgation protocols; lest any taint of corruption result from the Warp-spawned insanity each witnessed in battle.^[1]

Source

• 1: Imperial Armour Volume Two - Second Edition, pg. 18