Battle of New Suryia

The Battle of New Suriya was an Imperial castigation campaign conducted by the newly formed Dawn Guardians, a newly incepted Ultima Founding Space Marine Chapter comprised entirely of Primaris Space Marines. The Chapter proceeded to join the crusading forces of the Imperial Indomitus Crusade. Besieged by the forces of the vile Black Legion, the world of New Suriya was destined to fall within a matter of weeks, until the timely arrival of the Imperial forces of the Indomitus Crusade.

Background
Following the formation of the galaxy-spanning tear in reality known as the Great Rift, thousands of Imperial worlds were cut off from the rest of the Imperium - alone, without support - forced to fight a neverending tide of Chaos warbands, daemonic legions and Chaos cultist uprisings. New Suryia was one such world. Isolated and alone, they soon faced their doom in the form of an invading fleet of the treacherous Black Legion. Fortunately, this world received relief in the form of the Dawn Guard Space Marine Chapter and the forces of the Indomitus Crusade. Besieged for several months, by the time the crusading Imperial forces arrived, the planet was dangerously close to falling into the clutches of the Ruinous Powers. During this campaign, the Dawn Guardians earned some fame across the wider Imperium when a squad of Aggressors held back a tide of Heretic Astartes from the planet's great library, which held thousands of years of irreplaceable knowledge. Though only one Aggressor survived the onslaught, the library was saved and New Suryia was soon after, liberated.