Members of the '''Fire Caste''' are the warriors of the [[Tau Empire]], and as such are most often seen on the field of battle. They have been bred to be the strongest and most aggressive Tau, and weak strains are quickly weeded out. These traits come from the Fire Caste's origin on the plains of [[T'au]], where they were hunters and warriors. [[Fire Warriors]], as soldiers of the Fire Caste are known, spend their entire lifetimes in battle or preparing for it, constantly honing their tactics and working to improve their skills. The strongest of the strong are those Tau from the world of [[Vior'la]], who have slightly greater muscle mass because of the stronger gravity of that planet.{{Fn|6a}} The Fire Caste are guided by the [[Code of Fire]] — a doctrine of loyalty, martial arts and merciless war tempered by wisdom.{{Fn|6a}}{{Fn|9a}}