The Blood Brethren are the fighting force of Laurentia and favored companions in arms to the Astartes of the Hallowed Glaive. They are those of Laurentian kin who have chosen to serve on the path of blood in the trinity of service to the Imperium and the Chapter.
Blood Brethren of Laurentia carry the blessings of the Emperor's warrior angels and are endowed with augments and arms by the Cult Mechanicus Cambria. Throughout Sector Gondwana, they are renowned as elite heralds of the Astartes and as the chosen of the Triumvirate.
Service in Blood
"Service is perpetual. Forever must books be re-written, lest their knowledge falls to oblivion. Forever must steel be forged, lest the works of humanity fall and decay. Forever must blood be spilled, lest the enemies will conquer all which humanity learned and forged." - The Litany of Laurentia, v. 329132
Through blood the Brethren serve on a path of war, fighting the beast and the heretic and all which stands against the Imperium. Their service is dedicated wholly to the Astartes of the Hallowed Glaive. In training, in battle, in death, they seek to aid the emperor's angels in their crusades and conquest.
Recruitment and Augmentation
The Blood Brethren are drafted from both the proudest and the lowliest of their kin.
Their elites are more often than not would-be initiates, valiant souls who braved the deadly seasons of the ring where they fought beast and machine to prove their worth as brothers to the chapter. Among all potential initiates, only a fraction may ever be chosen and those who may never ascend the Spire of Creation will continue to fight on, to find their way into the Castellum, where the path of war awaits them.
But into the ranks of the Brethren are also pushed those who fail to seek any other path and have descended from the spires into the underhives of their cities. In the chaotic catacombs where the Spires meet the ring, the weak of body and mind will perish, leaving only ruthless survivors to be forced into service by the elites of the Blood Brethren. There, they will serve as trainees either to be indoctrinated and recruited as proper brothers in arms or to die by the hands of more worthy recruits.
All who join the Blood Brethren undergo intensive training from a young age, growing up in their assigned units and receiving roles according to their talent and strength. In rituals performed by the Cult Mechanicus Cambria, they are changed and augmented, their minds cleansed and focused on their path.
Read the full codex entry here: brass-and-iron.fandom.com/wiki…
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