The Fourth Legion -

On the fourth day, the firing ceased. The silence was heavier than the noise. Then, Valerius gave the order. "Iron Within."

The siege began not with a charge, but with a crescendo. For three straight days, the Iron Warriors’ artillery bombarded the walls. Thousands of shells, heavy lascannons, and specialized siege-drills tore into the outer defensive perimeter. The air smelled of ozone, pulverized rock, and promethium.

"Iron Without!" roared his Legionaries as they advanced, not running, but walking in a relentless, iron wall. The Imperial Fists fired from the breaches, but the IVth Legion simply ignored the casualties. They were used to taking suicide missions, forced by their primarch, Perturabo, to excel in hopeless situations. The Fourth Legion

"Then it will make a louder sound when it falls," Valerius replied, his voice grating like grinding stone.

Warsmith Valerius stood on a ridge overlooking the shining white walls of the fortress. Behind him, thousands of his Legionaries—armored in hazard-striped iron—silently checked their ordnance. There was no shouting, no bloodlust, only the cold, systematic preparation of war. The Iron Warriors did not fight for glory; they fought for the sake of breaking what others deemed unbreakable. On the fourth day, the firing ceased

The Fourth Legion didn't celebrate. They simply packed their artillery and began moving towards the next fortress, another, more difficult challenge, for they were the masters of iron and the servants of a war that would never end.

The Iron Warriors (IVth Legion) are known for being master siege-breakers, pragmatic yet bitter warriors who specialized in breaking down static defenses, often in competition with the Imperial Fists.* "Iron Within

The story reflects their portrayal in Storm of Iron and Angel Exterminatus as rationalists trapped in a war of attrition.* If you would like to continue this story, I can: Describe the Battle of the Desirian Forests Focus on the rivalry with the Imperial Fists (Rogal Dorn) Add another character (such as a Traitor Librarian)