In peacetime, Ichiryo gusoku lived as farmers engaged in working the land, however, once they were mobilized by the feudal lord, they were supposed to respond it at once with ichiryo (one set) of gusoku (weapon, armor).
一領具足は、平時には田畑を耕し、農民として生活をしているが、領主からの動員がかかると、一領（ひとそろい）の具足（武器、鎧）を携えて、直ちに召集に応じることを期待されていた。