The Legion of Light is the name given to Erberos' army. They can usually be seen in armor, bearing The Lightbringer's or symbol.
Soldiers of the Legion of Light are usually trained in combat from an early age, and have in some way stood out to recruiters, such as being distinguished members of The Watch.
Most legionaries are highly devoted to the Lightbringer, and all are expected to follow his tenets. It is not uncommon to find Paladins and War Clerics among these soldiers.