The World Eaters are one of the most feared and violent legions in the universe of Warhammer 40,000. Once a proud Space Marine Legion created by the Emperor of Mankind, they eventually became devoted followers of the Chaos God Khorne, the god of war, rage, and bloodshed.
The legion was led by their primarch, Angron, a brutal warrior who had been enslaved as a gladiator before being reunited with his legion. Scarred by his past and implanted with the torture-inducing cybernetic devices known as the Butcher's Nails, Angron lived in constant rage. These implants drove him and eventually much of his legion into uncontrollable bloodlust.