When the Great Rift tore the galaxy in two, its opening vomited daggers of madness into a thousand systems, and the Konor system stood squarely in the path of one such deluge. The Konor Campaign was the Imperium's stand to hold this vital region against the Chaos hosts spilling from the storm, and it drew defenders from across the loyal galaxy to a war that would herald the wider counterattack to come. The reborn Space Marines of the Indomitus Crusade made their presence felt here in strength.
The Chaos Space Marines and their teeming cultist levies came in warband after warband, drunk on the newborn power of the Rift, seeking to drown Konor's worlds in blood and turn them into altars for the Dark Gods. World by world the campaign raged, orbital defence platforms and hive-fortresses changing hands in cycles of assault and reconquest, the void above lit by the funeral pyres of ships beyond counting.
Konor held, and its holding mattered beyond its own borders, for the campaign became a proving ground for the Imperium's new resolve in the age of the Rift. The victory was neither easy nor clean, and the worlds that survived did so scarred and haunted, but for once the tide was turned rather than merely endured. In an age of endless retreat, Konor stood as a rare and precious thing: ground held, and an enemy sent reeling back into the storm that spawned it.