Ashigaru (足軽 "light [of] foot"?) were foot-soldiers employed by the samurai class of feudal Japan. The first known reference to ashigaru was in the 14th century, but it was during the Ashikaga shogunate–Muromachi period that the use of ashigaru became prevalent by various warring factions.
Attempts were made in Japan by Emperor Tenmu (673–686) to have a conscripted national army, but this did not come about, and by the 10th century Japan instead relied on individual landowners to provide men for conflicts and wars. These horse-owning landowners were the beginnings of the samurai class and the men who worked the land for the landowners became the common foot soldiers during times of war. These foot soldiers could have long ties and loyalty to the landowners which went back many generations.
Land-owning samurai, together with peasant foot soldiers, fought in many wars and conflicts including the Mongol invasions of Japan in 1274 and 1281. Constant warfare between the 14th and 16th centuries made the hiring of foot soldiers with no particular loyalty necessary at times. Paid only in loot, these mercenaries were not well-trained and thus could not always be depended upon in battle. These wandering foot soldiers eventually became the ashigaru.
Ashigaru were commonly armed with naginata, yari, yumi and swords.Ashigaru armour varied depending on the period, from no armour to heavily armored and could consist of conical hats called jingasa made of lacquered hardened leather or iron, cuirasses (dō), helmets (kabuto), armoured hoods (tatami zukin), armored sleeves (kote), greaves (suneate), and cuisses (haidate).