.....what do you think soldiers and warriors practice? these are people who are trained in combat, both armed and unarmed; if an experienced trained killer fought chuck norris in his prime, even unarmed, they would probably kill him. martial arts is literally just the style and techniques practiced within a particular culture of combat, any warrior trained in combat are practicing the martial arts of their combat culture. a lot of soldiers today, like the marines for example, are trained under a system that incorporates aspects of multiple martial arts styles to most efficiently dispatch a threat.