History of Iaido Batto Do

Three Names, One Lineage

Batto-do, kendo and iaido are often spoken of as if they were separate arts that happen to share a weapon. In practice they are three branches growing from a single trunk. All of them descend from the battlefield swordsmanship of feudal Japan, and all of them were reshaped — in different ways and at different moments — by the long peace of the Tokugawa period and by the upheavals of the Meiji Restoration. Understanding where each branch split from the trunk explains a great deal about why kendo wears armour and shouts, why iaido begins seated and silent, and why batto-do places cutting at the centre of its practice.

The oldest layer is the koryu, the classical schools. By the sixteenth century Japan had hundreds of martial traditions, each preserved within a family or a domain and transmitted by direct licence from teacher to student. Tenshin Shoden Katori Shinto-ryu, founded in the fifteenth century and still practised today, is the most widely cited example, alongside the Kashima traditions that share its roots. These schools taught the sword as one part of a complete martial curriculum: spear, halberd, staff, grappling and strategy were studied together, because on a real field a warrior might need any of them in the same afternoon.

Hayashizaki Jinsuke and the Birth of Iai

Drawing and cutting in a single motion was not a separate discipline until Hayashizaki Jinsuke Shigenobu, a swordsman of the late sixteenth and early seventeenth centuries, systematised it. Tradition places his life around 1542 to 1621 and his training in the Shimousa region, and it credits him with a spiritual resolve formed at a shrine after long ascetic practice. What Hayashizaki created was not a new way of fighting but a concentration on the moment of encounter: seated, standing, walking, in a narrow room or an open field, the technique begins from where the sword actually is and ends with it returned to the scabbard.

His teaching spread through several lines. The most influential became Muso Jikiden Eishin-ryu, whose forms were shaped by the seventh headmaster, Hasegawa Eishin, and the family of schools known collectively as Muso Shinden-ryu, organised in the twentieth century by Nakayama Hakudo from the traditions he had received. Much of what a modern student practises in iaido — nukitsuke, kirioroshi, chiburi and noto performed in prescribed order — can be traced back through these lines to Hayashizaki's insight that the draw itself is already a cut.

From Battlefield to Dojo

Tokugawa peace removed the warrior's daily need to fight but not his need to train. Swordsmanship shifted toward self-cultivation, moral discipline and the refinement of technique for its own sake, and the schools codified their curricula with increasing care. It was during this period that shinai and the protective armour that became bogu were developed, allowing students to strike one another at speed without crippling injuries. That single technical change made competitive fencing possible, and competitive fencing is the direct ancestor of everything kendo is today.

After 1868 the samurai class was dismantled and the carrying of swords was prohibited. Swordsmanship nearly disappeared. It survived partly through the efforts of former retainers who kept their family traditions alive in private, and partly through a reaction in the 1880s and 1890s that saw martial training as a way to build physical and moral strength in a modernising nation. The Dai Nippon Butoku Kai, founded in 1895, gave the various fencing styles a common institutional home, standardised terminology and a shared competitive framework. The word kendo came into general use around this time, replacing older terms such as gekiken.

Modern Kendo and Modern Iaido

The kendo practised today uses a defined set of strikes, a uniform, a graded ranking system and a body of kata performed with wooden swords. The modern kendo kata were formalised in the 1930s and revised after the Second World War, when martial arts in Japan were suspended and then rebuilt under new organisations. The All Japan Kendo Federation, established in 1952, became the reference body for the sport, and its rules now govern competition worldwide. Kendo is athletic, loud and confrontational — qualities that make it excellent training for distance, timing and spirit, and that make it almost the opposite of iaido in atmosphere.

Iaido developed alongside it as the non-competitive, form-based counterpart. Where kendo tests a student against an opponent, iaido tests a student against a standard: the form must be correct in posture, angle, rhythm and intention, and there is no one on the other side to blame when it is not. In 1968 the All Japan Kendo Federation introduced a set of seitei iai forms, drawn from several classical schools, so that practitioners of different ryuha could train and grade together. The classical schools continued in parallel, and serious students are still expected to study a koryu in depth rather than rely on the standardised set alone.

Tameshigiri and the Rise of Batto-Do

Cutting tests are old. In the Edo period, tameshigiri was performed on rolled mats, on bundled straw and, less comfortably for everyone involved, on condemned bodies, in order to evaluate a blade and the skill of the man wielding it. The practice declined with the sword itself, then returned in the twentieth century as a way to verify that a technique actually works. In 1925 the Japanese army established a sword curriculum at the Toyama Military Academy, combining iai drawing with a strong emphasis on practical cutting; Toyama-ryu remains one of the best-known gendai schools, and Nakamura Taizaburo, a graduate of that system, later developed his own highly influential line.

Batto-do is the term that grew up around this cutting-centred approach. Where iaido emphasises the form and the internal discipline of the draw, batto-do foregrounds the cut itself: the trajectory of the blade, the focus of the eyes, the sound and resistance of the target. A batto-do practitioner may spend as much time preparing and inspecting tatami mats as they do practising forms, and grading frequently requires cutting to a specified standard. The two arts are not rivals. Most instructors teach both, because a form performed without the ability to cut is only half a technique, and a cut delivered without correct form is only luck.

Ryuseiken Batto-Do

Ryuseiken Batto-Do belongs to this modern lineage while remaining grounded in classical transmission. Its headmaster, Mitsuhiro Saruta Soke, is internationally recognised and has worked for decades to spread the art beyond Japan, teaching seminars and championships in the United States and elsewhere. Soke-level instruction in a batto-do line is rare in the West, which is why the seminars and open championships held in Arizona draw practitioners from across the country and from overseas. Students who attend them encounter the same structure found in any traditional school: etiquette first, then form, then cutting, then a lifetime of revisiting all three.

Our DVD series was made in that spirit. The historical material above is not decoration — knowing where a form came from, which school preserved it and what problem it was designed to solve makes the form easier to learn and much harder to perform carelessly. A student who understands that nukitsuke exists because the first cut must beat the opponent's intention will practise it differently from a student who has only been told to move the sword to the right. History, in sword work, is a teaching tool.