The Nerushimi Ironclad are Imperial Guard Regiments from the fortress world of Nyerushimiy, an isolated, far-flung world at the edge of the segmentum obscurus. With the Nyerushimiy system isolated from the Imperium by vengeful and unpredictable warp currents in all but a sparse few well-charted vital areas, the Ironclad have been forced into disparity and struggle by ever-present threat of chaos, having been forced into fierce industrialisation, austerity and self-devised tactics and technologies forged off the back of their own ingenuity in the absence of Imperial foreign aid in their efforts to survive.