Baron was an admiral in the early

Imperial Japanese Navy The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, Potsdam Declaration, when it was dissolved followin ...

Biography

Early career

Yamashita was the second son of a

samurai The samurai () were members of the warrior class in Japan. They were originally provincial warriors who came from wealthy landowning families who could afford to train their men to be mounted archers. In the 8th century AD, the imperial court d ...

in the service of the

Yonezawa Domain was a feudal domain in Edo period Japan, located in Dewa Province (modern-day Yamagata Prefecture), Japan. It was centered at Yonezawa castle in what is now the city of Yonezawa, and its territory extended over the Okitama District of Dewa Pr ...

and was born in the

castle town A castle town is a settlement built adjacent to or surrounding a castle. Castle towns were common in Medieval Europe. Some examples include small towns like Alnwick and Arundel, which are still dominated by their castles. In Western Europe, ...

of Yonezawa,

Dewa Province was a province of Japan comprising modern-day Yamagata Prefecture and Akita Prefecture, except for the city of Kazuno and the town of Kosaka. Dewa bordered on Mutsu and Echigō Provinces. Its abbreviated form name was . History Early per ...

(present day

Yamagata prefecture is a Prefectures of Japan, prefecture of Japan located in the Tōhoku region of Honshu. It has a population of 1,005,926 (1 February 2025) and an area of 9,325 Square kilometre, km2 (3,600 Square mile, sq mi). Its neighbours are Akita Prefectu ...

). Yamashita graduated from the 10th class of the

Imperial Japanese Naval Academy The was a school established to train line officers for the Imperial Japanese Navy. It was originally located in Nagasaki, moved to Yokohama in 1866, and was relocated to Tsukiji, Tokyo, in 1869. It moved to Etajima, Hiroshima, in 1888. Students ...

in 1883, ranked 4th out of 27 cadets. His classmates included Katō Sadakichi. His

midshipman A midshipman is an officer of the lowest Military rank#Subordinate/student officer, rank in the Royal Navy, United States Navy, and many Commonwealth of Nations, Commonwealth navies. Commonwealth countries which use the rank include Royal Cana ...

service was aboard the

ironclad warship An ironclad was a steam-propelled warship protected by steel or iron armor constructed from 1859 to the early 1890s. The ironclad was developed as a result of the vulnerability of wooden warships to explosive or incendiary shells. The firs ...

during its long-distance navigational training voyage to

Wellington Wellington is the capital city of New Zealand. It is located at the south-western tip of the North Island, between Cook Strait and the Remutaka Range. Wellington is the third-largest city in New Zealand (second largest in the North Island ...

Valparaíso Valparaíso () is a major city, Communes of Chile, commune, Port, seaport, and naval base facility in the Valparaíso Region of Chile. Valparaíso was originally named after Valparaíso de Arriba, in Castilla–La Mancha, Castile-La Mancha, Spain ...

Callao Callao () is a Peruvian seaside city and Regions of Peru, region on the Pacific Ocean in the Lima metropolitan area. Callao is Peru's chief seaport and home to its main airport, Jorge Chávez International Airport. Callao municipality consists ...

and

Honolulu Honolulu ( ; ) is the List of capitals in the United States, capital and most populous city of the U.S. state of Hawaii, located in the Pacific Ocean. It is the county seat of the Consolidated city-county, consolidated City and County of Honol ...

in 1886. After his return to Japan, he was assigned to a number of ships in the early navy as gunnery officer, including the ironclad , gunboat (1889), corvettes (1891), (1892) and (1893). During the

First Sino-Japanese War The First Sino-Japanese War (25 July 189417 April 1895), or the First China–Japan War, was a conflict between the Qing dynasty of China and the Empire of Japan primarily over influence in Joseon, Korea. In Chinese it is commonly known as th ...

, Yamashita served as the chief gunnery officer on the corvette , followed by the cruiser In 1896, Yamashita was sent to the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

to oversee warship construction and to study then latest designs of the

Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...

.Kowner, '' Historical Dictionary of the Russo-Japanese War'', p. 429. While based in

London London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...

, he was promoted to lieutenant commander in 1897 and then to

commander Commander (commonly abbreviated as Cmdr.) is a common naval officer rank as well as a job title in many army, armies. Commander is also used as a rank or title in other formal organizations, including several police forces. In several countri ...

in 1898. On his return to Japan in 1899, he was appointed

executive officer An executive officer is a person who is principally responsible for leading all or part of an organization, although the exact nature of the role varies depending on the organization. In many militaries and police forces, an executive officer ...

, first on the

cruiser A cruiser is a type of warship. Modern cruisers are generally the largest ships in a fleet after aircraft carriers and amphibious assault ships, and can usually perform several operational roles from search-and-destroy to ocean escort to sea ...

, then on . In July 1900, Yamashita was assigned command of Japanese marines during the

Boxer Rebellion The Boxer Rebellion, also known as the Boxer Uprising, was an anti-foreign, anti-imperialist, and anti-Christian uprising in North China between 1899 and 1901, towards the end of the Qing dynasty, by the Society of Righteous and Harmonious F ...

Tientsin Tianjin is a direct-administered municipality in northern China on the shore of the Bohai Sea. It is one of the nine national central cities, with a total population of 13,866,009 inhabitants at the time of the 2020 Chinese census. Its metropoli ...

and, after performing special duty in

Hong Kong Hong Kong)., Legally Hong Kong, China in international treaties and organizations. is a special administrative region of China. With 7.5 million residents in a territory, Hong Kong is the fourth most densely populated region in the wor ...

and Chefoo, he was promoted to

captain Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader or highest rank officer of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police depa ...

in 1903. During the

Russo-Japanese War The Russo-Japanese War (8 February 1904 – 5 September 1905) was fought between the Russian Empire and the Empire of Japan over rival imperial ambitions in Manchuria and the Korean Empire. The major land battles of the war were fought on the ...

, Yamashita served as an operations planner at the

Imperial Japanese Navy General Staff The was the highest organ within the Imperial Japanese Navy (IJN). In charge of planning and operations, it was headed by an Admiral headquartered in Tokyo. History Created in 1893, the Navy General Staff took over operational (as opposed to a ...

. In particular, he was central to the efforts to locate the Russian Baltic Fleet and to predict its movements through the

Tsushima Strait or Eastern Channel (; ''Dongsuro'') is a channel of the Korea Strait, which lies between Korea and Japan, connecting the Sea of Japan, the Yellow Sea, and the East China Sea. The strait is the channel to the east and southeast of Tsushima Isl ...

, leadings to the crucial

Battle of Tsushima The Battle of Tsushima (, ''Tsusimskoye srazheniye''), also known in Japan as the , was the final naval battle of the Russo-Japanese War, fought on 27–28 May 1905 in the Tsushima Strait. A devastating defeat for the Imperial Russian Navy, the ...

. Following the war, in February 1906, he was assigned command of the cruiser , which proved to be the only time he ever captained a ship. In November of the same year, he became chief-of-staff of the

IJN 1st Fleet The was the main battleship fleet of the Imperial Japanese Navy. History First established on 28 December 1903, the IJN 1st Fleet was created during the Russo-Japanese War when the Imperial General Headquarters divided the Readiness Fleet int ...

As admiral

Yamashita was promoted to rear admiral in 1908 and subsequently served as chief-of-staff of the

Combined Fleet The was the main sea-going component of the Imperial Japanese Navy. Until 1933, the Combined Fleet was not a permanent organization, but a temporary force formed for the duration of a conflict or major naval maneuvers from various units norm ...

for October to December, when he was assigned to command the

Sasebo Naval District was the third of five main administrative districts of the pre-war Imperial Japanese Navy. Its territory included the western and southern coastline of Kyūshū, the Ryukyu Islands, Taiwan and Korea, as well as patrols in the East China Sea and t ...

. In March 1909 he returned to the Navy General Staff as chief of the First Bureau (Operations) and in December of the same year became commandant of the Naval Academy. Yamashita was promoted to

vice admiral Vice admiral is a senior naval flag officer rank, usually equivalent to lieutenant general and air marshal. A vice admiral is typically senior to a rear admiral and junior to an admiral. Australia In the Royal Australian Navy, the rank of Vice ...

in December 1912. While commanding the Navy Academy, he was known for being honest and strict in temperament, but on holidays he often invited the cadets to his office and served them with rice. He was also a great matchmaker who arranged for the marriages of 24 of his cadets. Many of the cadets of the academy during this period went on to play major roles in World War II. Following Japan's entry into

World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...

, Yamashita served as vice chief of the Navy General Staff until 1915. From 1915 to 1917, he was the Commander in Chief of the

. In August 1915, soon after he was transferred to Sasebo, his ten-year-old son was stabbed to death by a junior officer. In December 1917, Yamashita was given command of the

. Promoted to

admiral Admiral is one of the highest ranks in many navies. In the Commonwealth nations and the United States, a "full" admiral is equivalent to a "full" general in the army or the air force. Admiral is ranked above vice admiral and below admiral of ...

on 2 July 1918, Yamashita served as commander of the

from September 1918 until the end of October 1918, shortly before the war's end. Yamashita served as Chief of the

from December 1920 until April 1925. He was outspoken in his opposition to the

Washington Naval Treaty The Washington Naval Treaty, also known as the Five-Power Treaty, was signed during 1922 among the major Allies of World War I, Allies of World War I, which agreed to prevent an arms race by limiting Navy, naval construction. It was negotiated at ...

and Japan's abandonment of the " Eight-eight fleet" concept. Although he pledged to abide by government policies, he focused on new technologies (such as aviation and submarine warfare) which were not restricted by the treaty. Yamashita held several honorary and ceremonial posts after 1925 until being placed on the second reserve list in July 1928. He was ennobled with the title of ''danshaku'' (

baron Baron is a rank of nobility or title of honour, often Hereditary title, hereditary, in various European countries, either current or historical. The female equivalent is baroness. Typically, the title denotes an aristocrat who ranks higher than ...

) under the ''

kazoku The was the hereditary peerage of the Empire of Japan, which existed between 1869 and 1947. It was formed by merging the feudal lords (''Daimyo, daimyō'') and court nobles (''kuge'') into one system modelled after the British peerage. Distin ...

'' peerage system on 10 November 1928, and lived in retirement until his death in 1931. His grave is at the

Aoyama Cemetery is a cemetery in Aoyama, Tokyo, Aoyama, Minato, Tokyo, Minato, Tokyo, Japan, managed by the Tokyo Metropolitan Government. The cemetery is known for its cherry blossoms and is popular during the season of . History The cemetery was origin ...

in Tokyo.

Decorations

* 1895 –

Order of the Rising Sun The is a Japanese honors system, Japanese order, established in 1875 by Emperor Meiji. The Order was the first national decoration awarded by the Japanese government, created on 10 April 1875 by decree of the Council of State. The badge feat ...

, 6th class * 1901 – JPN Kyokujitsu-sho 4Class BAR

, 4th class 『官報』第5508号「叙任及辞令」November 11, 1901 * 1901 – JPN Kinshi-kunsho 4Class BAR

Order of the Golden Kite Order, ORDER or Orders may refer to: * A socio-political or established or existing order, e.g. World order, Ancien Regime, Pax Britannica * Categorization, the process in which ideas and objects are recognized, differentiated, and understood * ...

, 4th class * 1901 – JPN Kyokujitsu-sho 3Class BAR

, 3rd class * 1901 – JPN Kinshi-kunsho 3Class BAR

, 3rd class * 1895 –

Order of the Sacred Treasure The is a Japanese Order (distinction), order, established on 4 January 1888 by Emperor Meiji as the Order of Meiji. Originally awarded in eight classes (from 8th to 1st, in ascending order of importance), since 2003 it has been awarded in six c ...

, 6th class * 1914 - Order of the Sacred Treasure, 2nd class * 1915 – JPN Kyokujitsu-sho 1Class BAR

Grand Cordon of the Order of the Rising Sun * 1928 – JPN Toka-sho BAR

Order of the Rising Sun with Paulownia Flowers

Foreign

* 1924 –

France -

Legion of Honor The National Order of the Legion of Honour ( ), formerly the Imperial Order of the Legion of Honour (), is the highest and most prestigious French national order of merit, both military and civil. Currently consisting of five classes, it was ...

, Commandeur 『官報』第3641号「叙任及辞令」October 10, 1924

References

* * * * *

Footnotes

, - {{DEFAULTSORT:Yamashita, Gentaro 1863 births 1931 deaths People from Yamagata Prefecture Imperial Japanese Navy admirals People of the Meiji era Kazoku Japanese military personnel of the First Sino-Japanese War Japanese military personnel of the Boxer Rebellion Japanese military personnel of the Russo-Japanese War Japanese people of World War I Recipients of the Order of the Golden Kite Grand Cordons of the Order of the Rising Sun Recipients of the Order of the Sacred Treasure, 2nd class Recipients of the Order of the Rising Sun with Paulownia Flowers Commanders of the Legion of Honour