The Purging of the Traitor Legions
The relentless hunt that sealed the Traitors away from humanity forever.
The Purging of the Traitor Legions refers to the critical historical period immediately following the end of the Horus Heresy. During this time, the surviving Loyalist Space Marine Legions shifted their focus from defending Terra to hunting down remaining forces loyal to the Warmaster who had fled into the void. This era was defined by a relentless campaign to prevent any organized Traitor threat from regrouping within human space. It marked the transition from open galactic war to containment, ultimately forcing the nine Traitor Legions to retreat into the Eye of Terror, though their withdrawal occurred at various points during and after the Scouring, with some warbands remaining in realspace for centuries.
- Outcome
- Exile of Traitors to Eye of Terror
Lore & Background
Following the death of Horus Lupercal at the Siege of Terra, the Imperium faced a fractured galaxy. While the Emperor was placed upon the Golden Throne to stabilize reality, the Loyalist Astartes were tasked with cleansing the sector of lingering heresy. This was not merely military cleanup but an ideological necessity to prove that the Traitor cause could not survive. The campaign involved tracking down renegade fleets and rogue commanders who sought to ignite new rebellions before the Imperium could recover its strength. Many engagements occurred in the fringes of human space, where Loyalist hunters pursued their former brothers into the dark corners of the galaxy. These battles were brutal, often ending with no quarter given. Eventually, the sheer pressure forced the surviving nine Traitor Legions to abandon physical space, though they retreated at various points during and after the Scouring, and some warbands remained in realspace for centuries. They fled into the Eye of Terror, a stable warp rift that had existed long before the Heresy. This event effectively removed them from direct conflict for millennia, allowing the Imperium to focus on reconstruction and the long-term preservation of human order against all forms of corruption.
In Their Own Story
The void was silent save for the hum of life support. Brother Kaelen pressed his bolter against the cold bulkhead, watching the shadows lengthen on the derelict station's hull. He knew what waited beyond the airlock—a remnant of the old enemy, hiding in the dark since Terra fell. There would be no mercy tonight, only the cleansing fire required to keep humanity safe from the taint that once nearly destroyed them all.
Reader's Guide
Following the fall of Horus at Terra, the Loyalist Legions did not simply stand down. They turned their focus to hunting stragglers and preventing any remaining Traitor forces from regrouping within Imperial space. This period marked a shift from open warfare to a grim campaign of containment and extermination against those who refused to surrender or flee. Many Traitor commanders attempted to lead remnants back to human worlds, hoping to ignite rebellion before the Emperor could stabilize His rule. Loyalist squads intercepted these groups in deep space and on fringe systems, engaging in brutal skirmishes that echoed the larger Heresy. The goal was total eradication of any organized threat capable of challenging the new Imperium. Ultimately, most surviving Traitor forces were forced to retreat into the Eye of Terror, a warp storm that sealed them away from the galaxy for millennia. This exiling ensured the Loyalists could secure the Emperor's Golden Throne and begin the long reconstruction of humanity's empire without immediate fear of invasion. The hunt continues in spirit through age-old vigilance.
Did You Know?
- The Eye of Terror became the prison for the Nine Traitor Legions after this period.
- This era contributed to the formation of the Inquisition's mandate against heresy.
Frequently Asked Questions
What is The Purging of the Traitor Legions?
This period defines the immediate aftermath of the Horus Heresy when Loyalist forces hunted fleeing rebels instead of defending Terra. It marks the shift from open war to a focused campaign preventing the Traitors from regrouping in human space.
Who conducted The Purging of the Traitor Legions?
The surviving Loyalist Space Marine Legions carried out this relentless pursuit across the galaxy following the Warmaster's defeat. Their mission was to ensure no organized Chaos forces remained within reach of humanity.
What was the primary goal of The Purging of the Traitor Legions?
Leaders sought to eliminate remaining threats loyal to Horus who had escaped into the void after the Heresy ended. This effort aimed to stop any chance of the renegade Legions launching a new invasion from within human space.
How did The Purging of the Traitor Legions conclude?
The campaign finished when Loyalist armies forced the nine exiled Legions into the Eye of Terror permanently. This action sealed the Traitors away, creating a barrier that kept them from returning to the Imperium.
Why is The Purging of the Traitor Legions significant?
It secured the long-term survival of humanity by transitioning from active combat to permanent containment strategies. Without this era, the renegade forces might have regrouped and destroyed what remained of human civilization.
More in The Great Betrayal Timeline
Elsewhere in the Horus Heresy universe
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