A warrior cult of Chaos in the WarHammer 40,
000 universe. They were primarily active during the Sabbat Worlds Crusade in retaliation against
the Imperium of Man sometime in M41.750 to M41.820. Modeled on the lines of the
Imperial Guard, and often made up of deserters from
the Imperium, they were dedicated to the Blood God Khorne and were unhesitatingly loyal to their master, Archon Urlock Gaur.
Every soldier in this highly disciplined Chaos army personally swore allegiance to Gaur by slashing his palms on the jagged edges of the Archon's armour, hence the name "Blood Pact", since it was quite literally, a very intimate oath sworn in Blood.
Well trained, drilled and unflinching, and equipped with looted Imperial weapons or warped weapons produced on captured Forgeworlds, this army caused severe problems to the Imperial Crusade in the system, and was
responsible for spawning many similar outfits in the Chaos armies modeled upon it, most notably the Sons of Sek.
They appear notably in the works of Dan Abnett, the famous novelist and author of the "Gaunt's Ghosts" series of books set in the WarHammer 40,000 universe, dealing with the exploits of the Tanith 1st and Only and their commanding officer, Colonel-Commissar Ibram Gaunt.
We are the Blood Pact, we are legion, and we swear our
loyalty to the God of Rage, Blood and Fury, most
glorious Khorne, and to his trusted arm and scourge, our Archon Urlock Gaur. May we scourge the false Emperor's lackeys from the stars, for the glory of Khorne and the glory of the Archon!