Sōjutsu (槍術, literally "spear technique") is a traditional Japanese martial art dedicated to the use of the spear (yari) as a combat weapon.
Unlike many popular martial arts today, its origin and development are deeply linked to the needs of the battlefield during Japan's feudal times, and its transmission has endured through classical schools (koryū) that still keep these traditions alive today.
Origins and Historical Evolution
The use of spears in Japan has very ancient antecedents, but only with the rise of organized combat during the periods of civil wars (Sengoku, 15th–16th century) did it acquire significant tactical importance.
The spear, due to its reach, versatility, and ease of production, became the preferred weapon of many soldiers, including ashigaru (common infantry) and some samurai.
The earliest forms of sōjutsu developed by adapting weapons brought from the Asian continent, which were later redesigned and refined according to the needs of Japanese combat.
Over time, variants of the yari were created that increased its functionality in different battle contexts.
The Spear and its Role in Japanese Combat
The Japanese yari is characterized by a straight, pointed blade mounted on a long shaft.
In addition to thrusting, it could have variants with hooks or shapes to trap weapons or disarm an opponent.
These improvements reflected continuous innovation in sōjutsu to adapt to different combat styles.
Historically, the spear was not only used for direct attacks: it was also effective for maintaining distance, forming defensive lines, and engaging mounted enemies.
Its design allowed for a balance between strength and control that made it a highly valued weapon among Japanese martial units.
Traditional Schools (Koryū) and Transmission
Some historical martial schools dedicated deep study to sōjutsu.
Among the most prominent is the Hōzōin-ryū Takada-ha Sōjutsu, founded in Nara by the Buddhist monk Hōzōin Kakuzenbō In’ei in the 16th century.
He is credited with the creation of a spear with a cross-shaped head (kama-yari), capable of thrusting, sweeping, hooking, and rotating, which made this school one of the most influential in feudal Japan.
Hōzōin-ryū expanded and was widely taught during the Edo period, and although its practice declined after the Meiji Restoration, it was revitalized in the 20th century and is now taught in dojos in Japan and various countries around the world, preserving its lineage and original techniques.
In addition to Hōzōin-ryū, there are other schools such as Owari Kan Ryū, which teach specific spear-handling methods and forms (kata) inherited from centuries of martial transmission.
Technique and Training
Sōjutsu is based on mastering reach and movement, integrating postures, weapon handling, and body movement to maximize effectiveness.
Traditional schools teach structured forms (kata) that combine thrusts, changes in distance, defenses, and control of the space between combatants.
Classical training was performed with wooden spears to practice techniques safely, and as practice developed, methods were implemented for team training, improving coordination, and applying realistic maneuvers within the martial context.
Legacy and Modern Practice
Although sōjutsu is not as popular as other Japanese martial arts, such as kendo or jujutsu, its influence endures in Japanese martial culture.
Some traditional schools continue to teach it, and at kobudō events — ancient martial arts — demonstrations of techniques are still performed that represent how samurai warriors used the spear in the past.
This martial art offers not only a historical perspective but also a living connection with the martial practices that helped shape Japan's military history, and provides modern practitioners with a deep understanding of the technique, movement, and tradition that underpin this discipline.
