The liuyedao or "willow-leaf saber" is a type of dao that was commonly used as a military sidearm for both cavalry and infantry during the Ming and Qing dynasties. A descendant of the earlier Mongol sabre the liuyedao remained the most popular type of single handed sabre during the Ming dynasty, replacing the role of the jian as an issued weapon in the military. Many schools of Chinese martial arts originally trained with this weapon.