Founded amidst the turmoil of the 21st Founding, the Vehement Raiders were an offspring of the White Scars of unknown origin, that found a likeness to their parent's need for quick assault. As they namesake was, they adopted the position as raiders, crippling Chaos supply lines, luring ork ships away from conflicts, and assaulting the Tau whenever Ethereals were exposed. They served without mercy, often inflicting numbers of Imperial casualties in their raids, which bothered Imperial officials.