The Dark Iron Army is an army of Dark Irons based in the Blackrock Depths.
They are massive in numbers, outnumbering the Kargath Expeditionary Force, and defeating their 109th Division.
These Dark Irons were further empowered by the blessing of Ragnaros's minions. The rations for most of the Dark Iron army are kept in the East and West Garrison of the Depths. Following the Cataclysm, they joined the Twilight's Hammer cult.
This article or section includes speculation, observations or opinions possibly supported by lore or by Blizzard officials. It should not be taken as representing official lore.
The army is likely made up from the other Dark Iron dwarf groups like the Angerforge, Anvilrage, Doomforge, and Shadowforge.