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Kiheitai Militia 1864-1866
Active1863 (1863)
Disbanded1868 (1868)
AllegianceChōshū Domain
TypeVolunteer Militia
Size300 (Total enlisted: 622)
EngagementsShimonoseki Campaign
First Chōshū expedition
Second Chōshū expedition
Boshin War
Takasugi Shinsaku (1863–1867)
Yamagata Aritomo (1867–1868)

The Kiheitai (奇兵隊, Irregular Militia) was a volunteer militia raised by Takasugi Shinsaku of the Chōshū domain during the Bakumatsu period of Japan.


Founded in 1863 by Takasugi Shinsaku, the Kiheitai militia consisted of 300 men, who came from all social classes, including farmers, merchants, samurai and others. Most were from Chōshū, but a few volunteers were from other domains. The Kiheitai was known for its discipline, and use of western-style weapons and military techniques. It was partly funded by the Chōshū domain, but gained the rest of its financial support through donations by wealthy merchants and farmers. Kiheitai followed a developing trend which had been spearheaded by the shogunate following the Convention of Kanagawa to form military units based on ability rather than hereditary social status. Shinsengumi, a Kyoto-based, pro-Tokugawa police force, was founded in the same year as Kiheitai, and was also composed of people from a broad variety of social classes.


The Kiheitai militia saw action in the Bombardment of Shimonoseki in 1864, during which the fleets of Great Britain, France, the Netherlands, and the United States fired upon the Chōshū port city of Shimonoseki, and subsequently landed troops.

As the military arm of the pro-reform faction within the Chōshū domain, the Kiheitai helped overthrow the pro-bakufu faction in the Chōshū civil war, repulsed the Second Chōshū expedition sent by the Tokugawa bakufu in 1866. Around the same time, the Second Kiheitai was formed in the Suō Province.

Illustration of Cavalry, Infantry and Soldiers Retreating (Kiheitai, hoheitai, daichōren no zu)

Takasugi died of tuberculosis in 17 May 1867, his Kiheitai militia was taken over by his protégé Yamagata Aritomo. The Kiheitai militia played an important role in the Boshin War, which led to the Meiji Restoration.


The Kiheitai was disbanded in 1868, with total enlistment of 622 men since 1863. The success of the socially mixed unit and its Western armaments and tactics was an important influence on the development of the Imperial Japanese Army, and on the later system of universal military conscription in Japan.

Other usage[edit]

The forces defending Aizuwakamatsu during the Boshin War, and the forces of Saigō Takamori in the Satsuma Rebellion also used the term kiheitai to describe themselves.

Kiheitai in media[edit]

  • The Kiheitai appeared in an expansion of Creative Assembly's Total War: Shogun 2, Fall of the Samurai as special units of the Chōshū Domain. They are featured as an elite unit, having below-par statistics with other late game elite infantry but requiring less money and time to recruit and maintain, and can be recruited on unlimited number unlike other elite units.
  • In Rurouni Kenshin the Kiheitai is seen in a number of flashbacks as the title character, Kenshin, was recruited into the force by Takasugi Shinsaku himself.
  • In Gintama the Kiheitai also appears as a terrorist faction led by Gintoki's old friend turned enemy, Shinsuke Takasugi, who is loosely based on Takasugi Shinsaku.


  • Huber, Thomas M.: The Revolutionary Origins of Modern Japan. Stanford, California: Stanford University Press, 1981.
  • Craig, Albert M.: Chôshû in the Meiji Restoration. Lanham et al.: Lexington Books, 2000.