Saria Insurrection

The Siege of Callisto was a joint Imperial Compliance of the Brazen Lions and the Hounds of Kerberos. The Brazen Lions launched a devastating assault on Sarias' Landing and its dependency worlds, in support of Hounds of Kerberos. World after world rose up in rebellion, insurrections spreading across the region and blanketing the sub-sector.

Entire populations and ragtag fleets were led into battle by chanting Traitor Marines, clad in a panoply of colours, drawn from countless warbands. As the weeks became months and the months became years, more and more of both Chapters arrived to punish, cleanse, and reclaim the rebellious worlds. Millions are slain, but the Brazen Lions and the Hounds of Kerberos suffered casualties beyond their ability to sustain a fighting front.

Brazen Lions and the Hounds of Kerberos withdrew from the conflict with their heads held high. Traitor armada broke from the Warp, hungry for the chance to wipe the Lions and Hounds from the face of the Imperium. The battle that followed lasted for four days of void war and vicious boarding actions, during which Brazen Lions and Hounds of Kerberos were responsible for the taking and scuttling of nine capital-class vessels.

History
The Brazen Lions launched a devastating assault on Sarias' Landing and its dependency worlds, in support of Hounds of Kerberos. World after world rose up in rebellion, insurrections spreading across the region and blanketing the sub-sector.

Entire populations and ragtag fleets were led into battle by chanting Traitor Marines, clad in a panoply of colours, drawn from countless warbands. The Brazen Lions and the Hounds of Kerberos found themselves tied up in protracted conflicts and trench wars, caught in a cobweb of a much wider heresy. As the weeks became months and the months became years, more and more of both Chapters arrived to punish, cleanse, and reclaim the rebellious worlds. The Rolls of Honour run black with the ink of millions of enemies slain, but the Brazen Lions and the Hounds of Kerberos suffered casualties beyond their ability to sustain a fighting front.

With dozens of Imperial Guard regiments arriving alongside several relief Chapters, the Brazen Lions and the Hounds of Kerberos withdrew from the conflict with their heads held high. Yet the bitterest blow was yet to be struck: it came as the remnants of their fleet mustered above Sarias' Landing itself, when a Traitor armada broke from the Warp, hungry for the chance to wipe the Lions and Hounds from the face of the Imperium.

The battle that followed lasted for four days of void war and vicious boarding actions, during which Brazen Lions and Hounds of Kerberos were responsible for the taking and scuttling of nine capital-class vessels. When the Brazen Lions and Hounds of Kerberos at last stood victorious and took stock of their losses, fewer than four hundred Space Marines in total still drew breath.