Masami Kobayashi
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was an admiral in the
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, when it was dissolved following Japan's surrender ...
during
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
. His name was sometimes misspelled as "Marasmi Kobayashi" or "Marashi Kobayashi" by contemporary
United States Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...
sources. He was an outspoken proponent of the
Treaty Faction The was an unofficial and informal political faction within the Imperial Japanese Navy in the 1920s-1930s of officers supporting the Washington Naval Treaty. Background The ''Washington Naval Treaty'', also known as the ''Five-Power Treaty'', l ...
within the Imperial Japanese Navy.


Biography

Kobayashi was a native of
Yonezawa, Yamagata Yonezawa City Hall is a city in Yamagata Prefecture, Japan. , the city had an estimated population of 81,707 in 33,278 households, and a population density of 150 persons per km2. The total area of the city is . Yonezawa is most famous for i ...
, where his father was a farmer. With the assistance of a clique of admirals within the Imperial Japanese Navy from former Yonezawa Domain (including Yamashita Gentarō and
Chūichi Nagumo Chūichi Nagumo (, ''Nagumo Chūichi''; 25 March 1887 – 6 July 1944) was an admiral in the Imperial Japanese Navy (IJN) during World War II. Nagumo led Japan's main carrier battle group, the '' Kido Butai'', in the attack on Pearl Harbor, ...
), he entered military preparatory schools and graduated 4th out of 149 cadets from the 38th class of the
Imperial Japanese Navy 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 stud ...
. His classmates included
Michitaro Totsuka was a vice admiral in the Imperial Japanese Navy in World War II. Biography Tozuka was a native of the former Sendagaya Village in Tokyo, now part of Shibuya. He graduated 33rd out of 149 cadets in the 38th class of the Imperial Japanese Naval ...
,
Takeo Kurita was a vice admiral in the Imperial Japanese Navy (IJN) during World War II. Kurita commanded IJN 2nd Fleet, the main Japanese attack force during the Battle of Leyte Gulf, the largest naval battle in history. Biography Early life Takeo Kurita ...
,
Rokuzō Sugiyama was an admiral in the Imperial Japanese Navy during World War II. Biography Rokuzō Sugiyama was born in Tokyo as the son of a bureaucrat in the Ministry of Agriculture and Commerce, Sugimoto was a graduated of the 38th class of the Imperial Jap ...
,
Gunichi Mikawa was a vice-admiral in the Imperial Japanese Navy (IJN) during World War II. Mikawa was the commander of a heavy cruiser force that won a spectacular IJN victory over the U.S. Navy and the Royal Australian Navy at the Battle of Savo Island in Ir ...
and
Aritomo Gotō was an admiral in the Imperial Japanese Navy during World War II. Early career Gotō was born in Ibaraki prefecture in 1888. He graduated from the 38th class of the Imperial Japanese Naval Academy in 1910, ranked 30th out of a class of 149 ca ...
. After serving 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 roles. The term "cruiser", which has been in use for several hu ...
and
battleship A battleship is a large armored warship with a main battery consisting of large caliber guns. It dominated naval warfare in the late 19th and early 20th centuries. The term ''battleship'' came into use in the late 1880s to describe a type of ...
, Kobayashi 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 Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...
as part of the crew bringing the new
battlecruiser The battlecruiser (also written as battle cruiser or battle-cruiser) was a type of capital ship of the first half of the 20th century. These were similar in displacement, armament and cost to battleships, but differed in form and balance of attr ...
to Japan. After attending the
naval artillery Naval artillery is artillery mounted on a warship, originally used only for naval warfare and then subsequently used for naval gunfire support, shore bombardment and anti-aircraft roles. The term generally refers to tube-launched projectile-firi ...
and torpedo warfare schools, he served on the destroyer before attending the Naval Staff College in 1916, where he specialized in navigation. On graduation and promotion to lieutenant, Kobayashi served as chief navigator on the survey vessel and the aging cruiser . He then returned to shore duty from 1919-1921 with the
IJN 3rd Fleet The was a fleet of the Imperial Japanese Navy (IJN), which was created, and subsequently disbanded on six separate occasions and revived on five separate occasions. =History= Russo-Japanese War First established on 28 December 1903, the 3rd Fl ...
and served as an instructor at the Navy Academy. He returned to the Naval War College in 1921 and was promoted to lieutenant commander on graduation in 1922. His first command was from 1923-1925 of the
river gunboat A river gunboat is a type of gunboat adapted for river operations. River gunboats required shallow draft for river navigation. They would be armed with relatively small caliber cannons, or a mix of cannons and machine guns. If they carried mor ...
, which operated on the
Yangtze River The Yangtze or Yangzi ( or ; ) is the longest list of rivers of Asia, river in Asia, the list of rivers by length, third-longest in the world, and the longest in the world to flow entirely within one country. It rises at Jari Hill in th ...
in
Shanghai Shanghai (; , , Standard Mandarin pronunciation: ) is one of the four direct-administered municipalities of the People's Republic of China (PRC). The city is located on the southern estuary of the Yangtze River, with the Huangpu River flow ...
. From December 1925 to April 1928, Kobayashi served as a
naval attaché A navy, naval force, or maritime force is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operations and related functions. It include ...
to the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
. He was promoted to commander on 1 December 1927. After his return to Japan, Kobayashi served as
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, o ...
on the
submarine tender A submarine tender is a type of depot ship that supplies and supports submarines. Development Submarines are small compared to most oceangoing vessels, and generally do not have the ability to carry large amounts of food, fuel, torpedoes, and ...
. He was promoted to captain on December 1, 1931. A week later, he was sent to
Geneva Geneva ( ; french: Genève ) frp, Genèva ; german: link=no, Genf ; it, Ginevra ; rm, Genevra is the List of cities in Switzerland, second-most populous city in Switzerland (after Zürich) and the most populous city of Romandy, the French-speaki ...
as an attendant to the Geneva Conference. In November 1932, he returned to the United States as a naval attaché, remaining until June 1934. In December 1936, Kobayashi was appointed captain of the battleship . With the start of the
Second Sino-Japanese War The Second Sino-Japanese War (1937–1945) or War of Resistance (Chinese term) was a military conflict that was primarily waged between the Republic of China and the Empire of Japan. The war made up the Chinese theater of the wider Pacific Th ...
, Kobayashi became
Chief of Staff The title chief of staff (or head of staff) identifies the leader of a complex organization such as the armed forces, institution, or body of persons and it also may identify a principal staff officer (PSO), who is the coordinator of the supporti ...
of the IJN 4th Fleet and was based at
Tsingtao Qingdao (, also spelled Tsingtao; , Mandarin: ) is a major city in eastern Shandong Province. The city's name in Chinese characters literally means " azure island". Located on China's Yellow Sea coast, it is a major nodal city of the One Belt ...
as an assistant to Rear Admiral
Soemu Toyoda was an admiral in the Imperial Japanese Navy in World War II. Biography Early career Toyoda was born in what is now part Kitsuki city, Ōita Prefecture. He graduated from the 33rd class of the Imperial Japanese Navy Academy in 1905, ranked 26 ...
. On 1 December 1937, Kobayashi was promoted to
rear admiral Rear admiral is a senior naval flag officer rank, equivalent to a major general and air vice marshal and above that of a commodore and captain, but below that of a vice admiral. It is regarded as a two star "admiral" rank. It is often regarde ...
. From September 1938 to November 1939, he served as Chief of Staff of 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 ...
. He returned to the China front in November 1939 as Commander of the Naval Base Forces in
Wuhan Wuhan (, ; ; ) is the capital of Hubei, Hubei Province in the China, People's Republic of China. It is the largest city in Hubei and the most populous city in Central China, with a population of over eleven million, the List of cities in China ...
, and from November 1940 in Shanghai. He returned to Japan in May 1941. On 15 October 1941, Kobayashi was promoted to vice admiral.


World War II

Shortly before the
attack on Pearl Harbor The attack on Pearl HarborAlso known as the Battle of Pearl Harbor was a surprise military strike by the Imperial Japanese Navy Air Service upon the United States against the naval base at Pearl Harbor in Honolulu, Territory of Hawaii, j ...
, Kobayashi was the commander of the Osaka Guard District. He remained in that position until March 1943 and despite having more combat experience than many of his colleagues, was assigned to personnel recruitment, munitions production, and general bureaucratic duties. It was not until after the tide of the war started to change that Kobayashi was permitted to return to combat status with his appointment to command the IJN 4th Fleet on 1 April 1943. The IJN 4th Fleet was responsible for the defense of the South
Pacific The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...
, although its responsibilities overlapped, and often conflicted with the
IJN 2nd Fleet The was a fleet of the Imperial Japanese Navy (IJN) created as a mobile strike force in response to hostilities with Russia, and saw action in every IJN military operation until the end of World War II. History Established on 27 October 1903, ...
,
IJN 6th Fleet The was a fleet of the Imperial Japanese Navy (IJN) that during World War II, had primary responsibility for the command of submarine operations. History The 6th Fleet was formed on 15 November 1940, and was assigned general control of all IJN ...
, and 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 ...
. In November 1943, the
Allies An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out among them. Members of an alliance are called ...
were victorious at the
Battle of Tarawa The Battle of Tarawa was fought on 20–23 November 1943 between the United States and Japan at the Tarawa Atoll in the Gilbert Islands, and was part of Operation Galvanic, the U.S. invasion of the Gilberts. Nearly 6,400 Japanese, Koreans, an ...
and
Battle of Makin The Battle of Makin was an engagement of the Pacific campaign of World War II, fought from 20 to 24 November 1943, on Makin Atoll in the Gilbert Islands. Background Japanese invasion and fortification On 10 December 1941, three days after the ...
in the
Gilbert Islands The Gilbert Islands ( gil, Tungaru;Reilly Ridgell. ''Pacific Nations and Territories: The Islands of Micronesia, Melanesia, and Polynesia.'' 3rd. Ed. Honolulu: Bess Press, 1995. p. 95. formerly Kingsmill or King's-Mill IslandsVery often, this n ...
, and in early February 1944 seized critically strategic positions in the
Marshall Islands The Marshall Islands ( mh, Ṃajeḷ), officially the Republic of the Marshall Islands ( mh, Aolepān Aorōkin Ṃajeḷ),'' () is an independent island country and microstate near the Equator in the Pacific Ocean, slightly west of the Internati ...
with the
Battle of Kwajalein The Battle of Kwajalein was fought as part of the Pacific campaign of World War II. It took place from 31 January – 3 February 1944, on Kwajalein Atoll in the Marshall Islands. Employing the hard-learned lessons of the Battle of Tarawa, the Un ...
and the capture of
Roi-Namur Roi-Namur ( ) is an island in the north part of the Kwajalein Atoll in the Marshall Islands. Today it is a major part of the Ronald Reagan Ballistic Missile Defense Test Site, hosting several radar systems used for tracking and characterizing missi ...
. Realizing that the major Japanese naval base in the South Pacific at Truk was endangered, Kobayashi ordered the naval assets there transferred to
Palau Palau,, officially the Republic of Palau and historically ''Belau'', ''Palaos'' or ''Pelew'', is an island country and microstate in the western Pacific. The nation has approximately 340 islands and connects the western chain of the Caro ...
. However, before the transfer could be complete, the United States launched
Operation Hailstone Operation Hailstone ( ja, トラック島空襲, Torakku-tō Kūshū, lit=airstrike on Truk Island), 17–18 February 1944, was a massive United States Navy air and surface attack on Truk Lagoon conducted as part of the American offensive drive ...
, sinking a large number of Japanese warships and transports. The
Imperial Japanese Navy General Staff The was the highest organ within the Imperial Japanese Navy. 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 adminis ...
blamed Kobayashi for the defeat and relieved him of his command two days later. On 30 May 1944, Kobayashi was forced from active service and on 31 May 1944, he went into the reserves. After the
surrender of Japan The surrender of the Empire of Japan in World War II was announced by Emperor Hirohito on 15 August and formally signed on 2 September 1945, bringing the war's hostilities to a close. By the end of July 1945, the Imperial Japanese Navy ...
, Kobayashi was detained at
Sugamo Prison Sugamo Prison (''Sugamo Kōchi-sho'', Kyūjitai: , Shinjitai: ) was a prison in Tokyo, Japan. It was located in the district of Ikebukuro, which is now part of the Toshima ward of Tokyo, Japan. History Sugamo Prison was originally built in 1 ...
in
Tokyo Tokyo (; ja, 東京, , ), officially the Tokyo Metropolis ( ja, 東京都, label=none, ), is the capital and largest city of Japan. Formerly known as Edo, its metropolitan area () is the most populous in the world, with an estimated 37.468 ...
by the
SCAP SCAP may refer to: * S.C.A.P., an early French manufacturer of cars and engines * Security Content Automation Protocol * ''The Shackled City Adventure Path'', a role-playing game * SREBP cleavage activating protein * Supervisory Capital Assessment ...
authorities, and charged with
command responsibility Command responsibility (superior responsibility, the Yamashita standard, and the Medina standard) is the legal doctrine of hierarchical accountability for war crimes.
for the war crimes perpetrated by Admiral Shigematsu Sakaibara in the "Wake Island Massacre". His case never came to trial, and he was released from Sugamo Prison in 1952. In the post-war period, Kobayashi served as an advisor and instructor for the
Japan Maritime Self-Defense Force , abbreviated , also simply known as the Japanese Navy, is the maritime warfare branch of the Japan Self-Defense Forces, tasked with the naval defense of Japan. The JMSDF was formed following the dissolution of the Imperial Japanese Navy (IJN) ...
.


Notes


References

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Further reading

* * * * * *''The Marshall Islands'' by Gordon L. Rottman (2004) {{DEFAULTSORT:Kobayashi, Masami Japanese admirals of World War II 1977 deaths 1890 births Imperial Japanese Navy admirals People from Yamagata Prefecture Japanese naval attachés