The Boshin War (1868–1869) and Japanese Swords: The Clash Between Samurai Blades and Modern Weaponry in Japan's Last Civil War

The Boshin War: A Watershed in the History of Sword Culture

The Boshin War (Boshin Senso, 1868–1869) was the largest civil conflict in modern Japanese history, fought between the Meiji government (the New Government forces centered on Satsuma, Choshu, Tosa, and other domains) and a coalition of the old Edo Shogunate and various daimyo (the Former Shogunate forces).

The war unfolded as follows:

• The Battle of Toba-Fushimi (January 1868)
• The bloodless opening of Edo
• Resistance by northeastern domains
• The final decisive battle at Hakodate and the Goryokaku fortress (May 1869)

This war represented far more than a mere transfer of power; it signified the end of the samurai society and the birth of a modern nation-state.

In the Tohoku region, various domains centered on Aizu Domain formed the Ouetsu Reppan Alliance to oppose the New Government forces, and the conflict gradually shifted northward. Throughout these battles across various regions, the sword continued to play an important role as a weapon alongside Western firearms and as a tool expressing samurai honor and pride.

From the perspective of sword history, the Boshin War is positioned as one of "the last large-scale wars in which samurai actually used swords in combat."

The Shinsengumi and the Sword: The End of the Bakumatsu Swordsmen

The Shinsengumi left behind the most symbolic "tale of swords and swordsmen" during the Boshin War. The members of the Shinsengumi—Kondo Isami, Hijikata Toshizo, Okita Soji, and others—fought continuously from maintaining order in Kyoto during the bakumatsu period to the battlefields of the Boshin War, using the sword as their primary weapon.

• From Toba-Fushimi to Kofu: Against the New Government forces' modern firearms (Snider rifles, Gras rifles, etc.), the Shinsengumi fought with the antiquated equipment of swords and spears. While suffering repeated defeats from overwhelming firepower, historical records show that the Shinsengumi achieved certain military successes in close-quarters combat with swords.
• The Death of Hijikata Toshizo: Hijikata Toshizo, who continued fighting until the final battle at Hakodate and the Goryokaku fortress, embodied a contradiction—a general carrying a sword while wielding Western firearms. His death in June 1869, killed by gunfire, has been passed down through the ages as a symbol of "the end of the age of swords."

Kondo Isami, defeated at the Battle of Toba-Fushimi, subsequently surrendered and was executed, causing the Shinsengumi to lose its de facto leader. Okita Soji also withdrew from the battlefield and later died of illness; many of the Shinsengumi's key members lost their lives during the course of the Boshin War. The swords favored by these men have been preserved to the present day, serving as valuable historical materials that convey the true nature of bakumatsu swordsmen.

Aizu Domain and the Sword: Samurai Pride and Tragedy

Aizu Domain (present-day Fukushima Prefecture) left behind the most tragic anecdotes related to swords during the Boshin War.

Aizu Domain fought on the side of the Former Shogunate until the end, and the siege at Aizu Wakamatsu Castle (Tsuruga Castle) from August to September 1868 was of extraordinary intensity. Many samurai fought with swords both inside and outside the castle, and the scene of the young samurai of the White Tiger Corps stabbing themselves to death while girded with swords is known as a tragedy of modern Japanese history.

The Swords of the White Tiger Corps: The members of the White Tiger Corps, composed of second and third sons of Aizu samurai, were boys of only 16 to 17 years old, having recently come of age. The swords they carried at the time of their suicide on Iimori Mountain (19 members took their own lives) are preserved today in the White Tiger Corps Memorial Hall in Aizu Wakamatsu and other locations as personal effects, symbolizing the tragic aspects of sword culture during the Boshin War.

It is known that in the Aizu War, not only male samurai but also women wielding naginata and other weapons participated in the resistance, revealing that swords and weapons were not the exclusive domain of male samurai. Through this battle, the Aizu region was left with numerous anecdotes and relics related to swords.

The Reality of Sword Armament in the Former Shogunate Forces

In the Boshin War, the armament of the Former Shogunate forces and samurai of various domains was not limited to swords. The Edo Shogunate had already actively adopted Western firearms, and under the guidance of French military advisors (such as Brunel), the infantry units were primarily equipped with rifles.

Nevertheless, the sword remained worn as a personal weapon and functioned as an identifier of samurai status and rank. The frequency of actual combat use varied depending on the era and unit, but swords were drawn in many close-quarters combat situations. Just as Western nations at the same period maintained the custom of officers carrying ceremonial and command swords (sabers), the sword did not completely disappear even under the new Western military system. The Boshin War in Japan likewise reflects the transitional state in which the sword and modern weapons coexisted on the same battlefield.

The Influence on Sword Culture After the War

The Path to the Edict on the Abolition of Swordwearing

During the seven years from the end of the Boshin War (1869) to the promulgation of the Edict on the Abolition of Swordwearing (1876), the Meiji government dealt carefully with the issue of samurai swordwearing. The experience of the Boshin War—the reality that swordsmen of the Former Shogunate could become a powerful force of resistance—was one reason the government was cautious about prohibiting swordwearing.

Ultimately, the 1876 Edict on the Abolition of Swordwearing prohibited swordwearing, but this was not simply a matter of "modernization"; it was a political decision made after the bloody internal conflicts of the Boshin and Seinan wars.

Swords as Relics and Commemorative Objects

The swords worn by samurai who participated in the Boshin War were passed down to their descendants as keepsakes after the war. These swords held special historical value as "swords used during the Boshin Rebellion" and are currently housed in museums and historical repositories throughout Japan in places such as Aizu, Hakodate, and Yamagata.

These relic swords are treated with great care not merely as works of art but also as historical materials conveying the memories of individuals who lived through the tumultuous era of the Boshin War.

Impact on Sword Smiths

Some regions experienced a temporary activation of sword-forging activity due to wartime demand, particularly among sword smiths in the Kanto and Tohoku regions that had been Former Shogunate territories. However, following the end of the war and the Edict on the Abolition of Swordwearing, the subsequent sword industry was forced into rapid decline.

How We View Swords from the Boshin War Today: Perspectives on Appreciation and Preservation

Swords that survived the Boshin War are not merely antiques; they have value as witnesses to an era of transition from bakumatsu to Meiji. Swords actually used in combat by samurai of that time often show signs of intensive use, such as chips and cracks in the blade, and wear and tear to the tsukamaki (hilt wrapping) and other fittings. These marks of use serve as clues to determining authenticity and provenance.

When appreciating and collecting existing swords related to the Boshin War, in addition to the presence or absence of maker's signatures and the condition of the blade, the provenance—who owned it—is emphasized. In museums and memorial halls in regions that served as battlefields, such as Aizu and Hakodate, swords with clear provenance, such as the keepsakes of White Tiger Corps members, are preserved and displayed; encountering these actual objects provides a valuable opportunity for understanding the sword culture of the Boshin War period.

When discerning the authenticity and value of a sword, the presence or absence of a certificate of authenticity from a professional appraisal institution becomes an important criterion. Precisely because such swords have passed through the turbulent era of the Boshin War, their historical value must be properly evaluated through documentation of provenance and professional appraisal.

Conclusion

The Boshin War symbolizes "the last era in which the Japanese sword was used in large-scale actual combat." The swords of Shinsengumi swordsmen, the young samurai of the White Tiger Corps, and the samurai who fought to the final moments at Aizu and Hakodate embody the moment when Japanese sword culture entered its transition from "the age of practical weapons" to a new era. In understanding the subsequent progression of the Edict on the Abolition of Swordwearing, the Seinan War, and the artistic appreciation of swords in the Meiji period, the Boshin War provides an essential historical context.