Satcho Alliance
Encyclopedia
Satsuma Province
was an old province of Japan that is now the western half of Kagoshima Prefecture on the island of Kyūshū. Its abbreviation is Sasshū .During the Sengoku Period, Satsuma was a fief of the Shimazu daimyo, who ruled much of southern Kyūshū from their castle at Kagoshima city.In 1871, with the...
and Chōshū formed in 1866 to combine their efforts to overthrow the Tokugawa shogunate
Tokugawa shogunate
The Tokugawa shogunate, also known as the and the , was a feudal regime of Japan established by Tokugawa Ieyasu and ruled by the shoguns of the Tokugawa family. This period is known as the Edo period and gets its name from the capital city, Edo, which is now called Tokyo, after the name was...
of Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
.
The name Satchō is an abbreviation combining the names of the provinces
Provinces of Japan
Before the modern prefecture system was established, the land of Japan was divided into tens of kuni , usually known in English as provinces. Each province was divided into gun ....
Satsuma (present day Kagoshima prefecture
Kagoshima Prefecture
is a prefecture of Japan located on the island of Kyushu. The capital is the city of Kagoshima.- Geography :Kagoshima Prefecture is located at the southwest tip of Kyushu and includes a chain of islands stretching further to the southwest for a few hundred kilometers...
) and Chōshū (present-day Yamaguchi prefecture
Yamaguchi Prefecture
is a prefecture of Japan in the Chūgoku region on Honshū island. The capital is the city of Yamaguchi, in the center of the prefecture. The largest city, however, is Shimonoseki.- History :...
), two of the strongest tozama
Tozama
A ' was a daimyo who was considered an outsider by the rulers of Japan. The term came into use in the Kamakura period and continued until the end of the Edo period.-Edo period:...
anti-shogunate
Tokugawa shogunate
The Tokugawa shogunate, also known as the and the , was a feudal regime of Japan established by Tokugawa Ieyasu and ruled by the shoguns of the Tokugawa family. This period is known as the Edo period and gets its name from the capital city, Edo, which is now called Tokyo, after the name was...
domains
Han (Japan)
The or domain was the name of the estate belonging to a warrior in Japan after the 17th century. The fiefs of the daimyos of the samurai class of Japan during the Edo period were called han.-Edo period:...
in Edo period
Edo period
The , or , is a division of Japanese history which was ruled by the shoguns of the Tokugawa family, running from 1603 to 1868. The political entity of this period was the Tokugawa shogunate....
Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
.
In the 1860s, Satsuma tended to take a moderate position towards maintenance of the status quo, whereas Chōshū had become the center of an uprising aimed at overthrowing the government. Through the mediation of Sakamoto Ryōma
Sakamoto Ryoma
was a leader of the movement to overthrow the Tokugawa shogunate during the Bakumatsu period in Japan. Ryōma used the alias .- Early life :Ryōma was born in Kōchi, of Tosa han . By the Japanese calendar, this was the sixth year of Tenpō...
of Tosa Domain
Tosa Domain
The was a feudal domain in Tosa Province of Japan during the Edo period. Its official name is . Some from the domain played important roles in events in the late Tokugawa shogunate...
(present day Kochi Prefecture
Kochi Prefecture
is a prefecture of Japan located on the south coast of Shikoku. The capital is the city of Kōchi.- History :Prior to the Meiji Restoration, Kōchi was known as Tosa Province and was controlled by the Chosokabe clan in the Sengoku period and the Yamauchi family during the Edo period.- Geography...
), Satsuma military leaders Saigō Takamori
Saigo Takamori
was one of the most influential samurai in Japanese history, living during the late Edo Period and early Meiji Era. He has been dubbed the last true samurai.-Early life:...
and Okubo Toshimichi
Okubo Toshimichi
, was a Japanese statesman, a samurai of Satsuma, and one of the three great nobles who led the Meiji Restoration. He is regarded as one of the main founders of modern Japan.-Early life:...
were brought together with Katsura Kogorō (Kido Takayoshi
Kido Takayoshi
, also referred as Kido Kōin was a Japanese statesman during the Late Tokugawa shogunate and the Meiji Restoration. He used the alias when he worked against the Shogun.-Early life:...
) of Chōshū. Although the two domains were traditionally fierce enemies, their leaders agreed that the time was right for a change, and agreed in principle to assist one another in the event that either would be attacked by a third party. Also, Chōshū desperately needed modern weapons, but had very limited contacts with the western powers. Satsuma, on the other hand, had developed a substantial arms trade with Great Britain
Great Britain
Great Britain or Britain is an island situated to the northwest of Continental Europe. It is the ninth largest island in the world, and the largest European island, as well as the largest of the British Isles...
via Thomas Glover
Thomas Blake Glover
Thomas Blake Glover, Order of the Rising Sun was a Scottish merchant in Bakumatsu and Meiji period Japan.-Early life :...
, a Scottish
Scottish people
The Scottish people , or Scots, are a nation and ethnic group native to Scotland. Historically they emerged from an amalgamation of the Picts and Gaels, incorporating neighbouring Britons to the south as well as invading Germanic peoples such as the Anglo-Saxons and the Norse.In modern use,...
merchant affiliated with Jardine Matheson. At the suggestion of Sakamoto, Saigo helped broker an agreement to supply Chōshū with the weapons it needed to fight the Tokugawa shogunate.
Despite this assistance, there was still considerable distrust between the two domains. On March 1, 1868, the Shogunate demanded the retirement and confinement of Chōshū daimyō
Daimyo
is a generic term referring to the powerful territorial lords in pre-modern Japan who ruled most of the country from their vast, hereditary land holdings...
Mori Takachika
Mōri Takachika
was the 14th daimyo of Chōshū Domain. He was later allowed to use a character from the name of shogun Tokugawa Ieyoshi and changed his name to Yoshichika...
and the reduction of domain revenues by 100,000 koku
Koku
The is a Japanese unit of volume, equal to ten cubic shaku. In this definition, 3.5937 koku equal one cubic metre, i.e. 1 koku is approximately 278.3 litres. The koku was originally defined as a quantity of rice, historically defined as enough rice to feed one person for one year...
. This enraged the Chōshū leadership, and led to a formal, six-point agreement with Satsuma. The scope of the agreement was fairly limited. Satsuma agreed to assist Chōshū in obtaining a pardon from the Imperial Court. If this failed and the Shogunate attacked, Satsuma would send 2000 troops to Kyoto
Kyoto
is a city in the central part of the island of Honshū, Japan. It has a population close to 1.5 million. Formerly the imperial capital of Japan, it is now the capital of Kyoto Prefecture, as well as a major part of the Osaka-Kobe-Kyoto metropolitan area.-History:...
; however, Satsuma would engage the Shogunate in combat only if Kuwana
Kuwana Domain
The ' was a Japanese domain of the Edo period, located in Ise Province .-List of Daimyo:*Honda clan #Tadakatsu#Tadamasa*Matsudaira clan...
, Aizu or Tokugawa Yoshinobu's personal guard attempted to block Satsuma's access to the Emperor.
The Alliance was crucial in enabling Chōshū to withstand a punitive expedition
Punitive expedition
A punitive expedition is a military journey undertaken to punish a state or any group of persons outside the borders of the punishing state. It is usually undertaken in response to perceived disobedient or morally wrong behavior, but may be also be a covered revenge...
mounted by the Tokugawa shogunate in the summer of 1866, which led to a stunning defeat for the Tokugawa armies. During the subsequent Boshin War
Boshin War
The was a civil war in Japan, fought from 1868 to 1869 between forces of the ruling Tokugawa shogunate and those seeking to return political power to the imperial court....
of 1867-1868, the imperial armies which finally overthrew the Shogunate were primarily samurai
Samurai
is the term for the military nobility of pre-industrial Japan. According to translator William Scott Wilson: "In Chinese, the character 侍 was originally a verb meaning to wait upon or accompany a person in the upper ranks of society, and this is also true of the original term in Japanese, saburau...
from the Satchō alliance. With the establishment of the Meiji Restoration
Meiji Restoration
The , also known as the Meiji Ishin, Revolution, Reform or Renewal, was a chain of events that restored imperial rule to Japan in 1868...
, men from these two domains dominated the new Meiji government into the 20th century.