Throughout Central Europe, the immense violence of the Thirty Years' War catalyzed the adoption of heavy three-quarter armor by specialized Cuirassier cavalry units. As musketry grew increasingly powerful, armorers abandoned lower leg defenses (greaves and sabatons) to save weight, redirecting the steel thickness into massive, bulletproof breastplates, pauldrons, and long overlapping thigh guards (tassets). This dense torso armor shielded riders as they executed close-range pistol charges against infantry lines.

The bleak, unyielding brutality of the Cuirassiers and their heavy iron kits heavily influenced early modern European baroque poetry. The German poet Andreas Gryphius wrote devastating sonnets reflecting on the ruined landscapes and spiritual void of this war, using the heavy iron soldier as a symbol of earthly destruction.