Toyoda Soemu
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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, Potsdam Declaration, when it was dissolved followin ...
in World War II.


Biography


Early career

Toyoda was born in what is now part Kitsuki city,
Ōita Prefecture is a prefecture of Japan located on the island of Kyūshū. Ōita Prefecture has a population of 1,081,646 (1 February 2025) and has a geographic area of 6,340 km2 (2,448 sq mi). Ōita Prefecture borders Fukuoka Prefecture to the northwest, K ...
. He graduated from the 33rd class of the Imperial Japanese Navy Academy in 1905, ranked 26th out of 176 cadets. He served 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 ...
duty aboard 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 ...
s and , and after being commissioned as an
ensign Ensign most often refers to: * Ensign (flag), a flag flown on a vessel to indicate nationality * Ensign (rank), a navy (and former army) officer rank Ensign or The Ensign may also refer to: Places * Ensign, Alberta, Alberta, Canada * Ensign, Ka ...
on 20 December 1906, he was assigned to the
destroyer In naval terminology, a destroyer is a fast, maneuverable, long-endurance warship intended to escort larger vessels in a fleet, convoy, or carrier battle group and defend them against a wide range of general threats. They were conceived i ...
. He was promoted to sub-lieutenant on 25 September 1908. Toyoda returned to school, becoming a
torpedo A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, such ...
and
naval artillery Naval artillery is artillery mounted on a warship, originally used only for naval warfare and then subsequently used for more specialized roles in surface warfare such as naval gunfire support (NGFS) and anti-aircraft warfare (AAW) engagements. ...
expert. As a
lieutenant A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a Junior officer, junior commissioned officer rank in the armed forces of many nations, as well as fire services, emergency medical services, Security agency, security services ...
from 1 December 1911, he served on the
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 att ...
. He graduated from the Naval War College (Japan) with honors in 1915, and was promoted to lieutenant commander on 1 April 1917. From 1917 to 1919, he was '' aide-de-camp'' 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 ...
Motaro Yoshimatsu ( :ja:吉松茂太郎). From 1919 to 1922, he was sent as naval attaché 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 ...
, during which time he was promoted 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 ...
on 1 December 1921. After his return to Japan, Toyoda was assigned 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 ...
on the cruiser . He subsequently served in a number of staff positions, 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 ...
on 1 December 1925, and received his first command: the cruiser in 1926. In December 1930, he became captain of the
battleship A battleship is a large, heavily naval armour, armored warship with a main battery consisting of large naval gun, guns, designed to serve as a capital ship. From their advent in the late 1880s, battleships were among the largest and most form ...
. During the London Naval Conference, he accompanied Admiral
Isoroku Yamamoto was a Marshal Admiral of the Imperial Japanese Navy (IJN) and the commander-in-chief of the Combined Fleet during World War II. He commanded the fleet from 1939 until his death in 1943, overseeing the start of the Pacific War in 1941 and J ...
to London in 1931. On 1 December 1931, Toyoda was promoted to
rear admiral Rear admiral is a flag officer rank used by English-speaking navies. In most European navies, the equivalent rank is called counter admiral. Rear admiral is usually immediately senior to commodore and immediately below vice admiral. It is ...
. From December 1931 to February 1933, Toyoda was chief of the Second Section of 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 ...
, and 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 ...
on 15 November 1935. From 1935 to 1937, Toyoda was Director of the Bureau of Naval Affairs, and on 20 October 1937, became Commander-in-Chief of the IJN 4th Fleet. He subsequently became Commander in Chief of the IJN 2nd Fleet on 15 November 1938. Both fleets were active in the
Second Sino-Japanese War The Second Sino-Japanese War was fought between the Republic of China (1912–1949), Republic of China and the Empire of Japan between 1937 and 1945, following a period of war localized to Manchuria that started in 1931. It is considered part ...
in support of the invasion of China. From 1939 to 1941, he was Director of Naval Shipbuilding Command.


World War II

Promoted to full
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 18 September 1941, at the time of the
attack on Pearl Harbor The attack on Pearl HarborAlso known as the Battle of Pearl Harbor was a surprise military strike by the Empire of Japan on the United States Pacific Fleet at Naval Station Pearl Harbor, its naval base at Pearl Harbor on Oahu, Territory of ...
, Toyoda was Commander-in-Chief of the Kure Naval District. Toyoda was strongly opposed to the war with the
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
, which he viewed from the start as "unwinnable". On 10 November 1942, Toyoda became a member of the Supreme War Council, where he made a strong (but mostly unsuccessful) effort to increase funding and the capacity of Japan's industry toward
naval aviation Naval aviation / Aeronaval is the application of Military aviation, military air power by Navy, navies, whether from warships that embark aircraft, or land bases. It often involves ''navalised aircraft'', specifically designed for naval use. Seab ...
, over the opposition to the Army-dominated
Imperial General Headquarters The was part of the Supreme War Council (Japan), Supreme War Council and was established in 1893 to coordinate efforts between the Imperial Japanese Army and Imperial Japanese Navy during wartime. In terms of function, it was approximately equi ...
. On 21 April 1943, Toyoda was reassigned (i.e. demoted) from the Supreme War Council to command of Yokosuka Naval District. After the death of Admiral
Mineichi Koga was a Japanese Marshal Admiral and commander-in-chief of the Imperial Japanese Navy's Combined Fleet. Biography Early life and career Koga was born in the ceramics center of Arita in Nishimatsuura County of Saga Prefecture in 1885. He ente ...
, Toyoda was appointed Commander-in-Chief 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 ...
on 3 May 1944. In June of the same year, he drafted and implemented "Plan ''A-Go''" which resulted in the decisive defeat of the Imperial Japanese Navy under the command of Admiral Jisaburō Ozawa in the Battle of the Philippine Sea. He followed with "Plan ''Sho-Go''", which again resulted in another major defeat at the
Battle of Leyte Gulf The Battle of Leyte Gulf () 23–26 October 1944, was the largest naval battle of World War II and by some criteria the largest naval battle in history, with over 200,000 naval personnel involved. By late 1944, Japan possessed fewer capital sh ...
. Toyoda was aware that both strategies had significant risks, but because the fleet of the Imperial Japanese Navy was nearing the point of being unusable due to a lack of gasoline and other essential supplies, he believed that the possibility of profit outweighed the danger of losing the fleet. In the end, however, Toyoda's aggressive defensive strategy did not pay off. Nonetheless, Toyoda continued with the same strategy, approving "Plan ''Ten-Go''" to send the battleship on its one-way final mission to
Okinawa most commonly refers to: * Okinawa Prefecture, Japan's southernmost prefecture * Okinawa Island, the largest island of Okinawa Prefecture * Okinawa Islands, an island group including Okinawa itself * Okinawa (city), the second largest city in th ...
. Toyoda replaced
Koshirō Oikawa was an admiral in the Imperial Japanese Navy and Ministry of the Navy of Japan, Naval Minister during World War II. Biography Oikawa was born into a wealthy family in rural Koshi District, Niigata, Koshi County, Niigata Prefecture, but was rai ...
as Chief of the Navy General Staff, after the latter resigned, and was the final supreme commander of the Imperial Japanese Navy from 29 May 1945 onward. Toyoda participated in numerous
Imperial Conference Imperial Conferences (Colonial Conferences before 1907) were periodic gatherings of government leaders from the self-governing colonies and dominions of the British Empire between 1887 and 1937, before the establishment of regular Meetings of ...
s concerning the
surrender of Japan The surrender of the Empire of Japan in World War II was Hirohito surrender broadcast, announced by Emperor Hirohito on 15 August and formally Japanese Instrument of Surrender, signed on 2 September 1945, End of World War II in Asia, ending ...
. Initially, the Navy Minister,
Mitsumasa Yonai was a Japanese navy officer and politician. He served as admiral in the Imperial Japanese Navy, Ministry of the Navy (Japan), Minister of the Navy, and Prime Minister of Japan in 1940. Early life and career Yonai was born on 2 March 1880, in M ...
, hoped that Toyoda would be able to exert a moderating influence over Army Chief of Staff Yoshijirō Umezu (since both came from the same district of Japan). However, Toyoda joined Umezu in his protestations against the Potsdam Proclamation of 26 July. Toyoda was for termination of the war but insisted that the government push for more favorable terms. After the atomic bombing of Hiroshima and Nagasaki, Toyoda's position became even more hardline. He argued that the Japanese people should defend the Japanese home islands until the last man.


Post-war

After the war, Toyoda was interrogated by Rear Admiral Ralph A. Ofstie in Tokyo on 14 November 1945. He was viewed as "highly intelligent and widely informed", and was observed to be a strong critic of the amount of political power the Army held in the Japanese government. He also expressed his opinion that the war with China should have been ended "even at some sacrifice" so that the men and resources could be redeployed to the Pacific theater.Utah State Library, Toyoda Trial Transcripts Toyoda was subsequently arrested by SCAP occupation authorities and held in
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 23 special wards, ward of Tokyo, Japan. History Sugamo Prison was orig ...
. In 1948, Toyoda was charged with war crimes "for violating the laws and customs of war". He pleaded 'not guilty' to all of the charges. He was acquitted and later released in 1949. He was the only member of the Japanese armed forces charged with war crimes to be acquitted. Toyoda published his memoirs in 1950, and died in 1957 of a
heart attack A myocardial infarction (MI), commonly known as a heart attack, occurs when Ischemia, blood flow decreases or stops in one of the coronary arteries of the heart, causing infarction (tissue death) to the heart muscle. The most common symptom ...
at the age of 72.


References


Notes


Books

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External links

*
Utah State Library Toyoda Soemu Trial Transcripts
{{DEFAULTSORT:Toyoda, Soemu 1885 births 1957 deaths Japanese admirals of World War II Japanese naval attachés Military personnel from Ōita Prefecture People from Kitsuki, Ōita