Shimomura in 1955
was a general in the
Imperial Japanese Army
The Imperial Japanese Army (IJA; , ''Dai-Nippon Teikoku Rikugun'', "Army of the Greater Japanese Empire") was the principal ground force of the Empire of Japan from 1871 to 1945. It played a central role in Japan’s rapid modernization during th ...
and the final
Minister of War
A ministry of defence or defense (see American and British English spelling differences#-ce.2C -se, spelling differences), also known as a department of defence or defense, is the part of a government responsible for matters of defence and Mi ...
of the
Empire of Japan
The Empire of Japan, also known as the Japanese Empire or Imperial Japan, was the Japanese nation state that existed from the Meiji Restoration on January 3, 1868, until the Constitution of Japan took effect on May 3, 1947. From Japan–Kor ...
.
Biography
Early career
Shimomura was born in
Kōchi Prefecture
is a prefecture of Japan located on the island of Shikoku. Kōchi Prefecture has a population of 669,516 (1 April 2023) and has a geographic area of 7,103 km2 (2,742 sq mi). Kōchi Prefecture borders Ehime Prefecture to the northwest and Tok ...
, but was raised in
Kanazawa, Ishikawa
is the capital of Ishikawa Prefecture in central Japan. , the city had an estimated population of 466,029 in 203,271 households, and a population density of 990 persons per km2. The total area of the city was .
Etymology
The name "Kanazawa" ...
, where his father was a recruiting officer for the Imperial Japanese Army. After attended military preparatory schools in Kanazawa and Nagoya, he graduated 6th out of 273 cadets from the 20th class of the
Imperial Japanese Army Academy in 1908. His classmates included
Prince Asaka,
Prince Higashikuni Naruhiko,
Prince Kitashirakawa Naruhisa,
Mitsuru Ushijima,
Heitarō Kimura,
Takashi Sakai, and
Shōjirō Iida. His speciality was artillery. He subsequently graduated at the head of his class from the 28th class of the
Army Staff College in 1916.
After serving in a number of staff and administrative positions within the
Imperial Japanese Army General Staff, Shimomura was posted to France as a
in 1919. He returned to the Strategy and Planning bureau of the General Staff in 1921 and was promoted to major in 1922. He was assigned as the Army observer to the Japanese delegation at the
Geneva Naval Conference negotiations from 1928 to 1929, during which time he was promoted to lieutenant colonel. He returned to Geneva in April 1931 as part of the Japanese delegation to the
League of Nations
The League of Nations (LN or LoN; , SdN) was the first worldwide intergovernmental organisation whose principal mission was to maintain world peace. It was founded on 10 January 1920 by the Paris Peace Conference (1919–1920), Paris Peace ...
and was promoted to colonel in August. The Geneva
Conference on Disarmament
The Conference on Disarmament (CD) is a multilateral disarmament forum established by the international community to negotiate arms control and disarmament agreements based at the Palais des Nations in Geneva. The Conference meets annually in ...
occurred in December. From December 1933 Shimomura was commander of the IJA 1st Heavy Field Artillery Regiment.
[Ammenthorp, The Generals of World War II]
World War II
In March 1935, Shimomura was assigned to the staff of the
Kwantung Army
The Kwantung Army (Japanese language, Japanese: 関東軍, ''Kantō-gun'') was a Armies of the Imperial Japanese Army, general army of the Imperial Japanese Army from 1919 to 1945.
The Kwantung Army was formed in 1906 as a security force for th ...
, returning to Japan in December to serve as an instructor at the Army Staff College. He was promoted to
major general in March 1936. He returned to the General Staff as Chief of the 4th Bureau from August 1936, and of the 1st Bureau from September 1937. The 1st Bureau was in charge of operational planning, and Shimomura was strong proponent of a more aggressive approach towards the
Kuomintang
The Kuomintang (KMT) is a major political party in the Republic of China (Taiwan). It was the one party state, sole ruling party of the country Republic of China (1912-1949), during its rule from 1927 to 1949 in Mainland China until Retreat ...
government in the
Shanghai
Shanghai, Shanghainese: , Standard Chinese pronunciation: is a direct-administered municipality and the most populous urban area in China. The city is located on the Chinese shoreline on the southern estuary of the Yangtze River, with the ...
area and his recommendations influenced the decision of the Japanese General Staff to authorize the landings of the
Japanese Tenth Army at the start of the
Battle of Shanghai
The Battle of Shanghai ( zh, t=淞滬會戰, s=淞沪会战, first=t, p=Sōng hù huìzhàn) was a major battle fought between the Empire of Japan and the Republic of China (1912–1949), Republic of China in the Chinese city of Shanghai during ...
. he was assigned command of
Tokyo Bay Fortress in September 1938.
Shimomura was promoted to
lieutenant general
Lieutenant general (Lt Gen, LTG and similar) is a military rank used in many countries. The rank traces its origins to the Middle Ages, where the title of lieutenant general was held by the second-in-command on the battlefield, who was norma ...
in March 1939. He was appointed commandant of the Artillery School in August 1940, and of the Army Staff College in September 1941. He was given a field command in October 1942 in the form of the
Japanese Thirteenth Army, a garrison force based in
Shanghai
Shanghai, Shanghainese: , Standard Chinese pronunciation: is a direct-administered municipality and the most populous urban area in China. The city is located on the Chinese shoreline on the southern estuary of the Yangtze River, with the ...
and surrounding provinces primarily to deter the possible landings of the
Allies of World War II
The Allies, formally referred to as the United Nations from 1942, were an international Coalition#Military, military coalition formed during World War II (1939–1945) to oppose the Axis powers. Its principal members were the "Four Policeme ...
in the lower
Yangtze River
The Yangtze or Yangzi ( or ) is the longest river in Eurasia and the third-longest in the world. It rises at Jari Hill in the Tanggula Mountains of the Tibetan Plateau and flows including Dam Qu River the longest source of the Yangtze, i ...
area of
east central China.
In March 1944, Shimomura was withdrawn to the
Japanese home islands and became commander of the
Western District Army, another force intended to defend against
Allied landings. However, in November 1944, he was sent back to China as commander of the
North China Area Army.
In May 1945, Shimomura was promoted to full
general
A general officer is an Officer (armed forces), officer of high rank in the army, armies, and in some nations' air force, air and space forces, marines or naval infantry.
In some usages, the term "general officer" refers to a rank above colone ...
, and on 23 August (just after 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 ...
), was appointed final
Army Minister under the
Shidehara cabinet. One of the reasons for his selection was that he had never been involved in hostilities against the United States at any point in his military career. Shimomura was also concurrently the final
Inspector-General for Military Training. His primary task was to oversee the demobilization of the Imperial Japanese Army.
As with all other members of the former Japanese government, Shimomura was briefly taken into custody by the
American occupation authorities from 1946 to 1947, but was released without charges filed.
In 1955, Shimomura was asked to help create the post-war
Japan Defense Agency. In June 1959, he was elected to the
House of Councilors in the post-war
Diet of Japan
, transcription_name = ''Kokkai''
, legislature = 215th Session of the National Diet
, coa_pic = Flag of Japan.svg
, house_type = Bicameral
, houses =
, foundation=29 November 1890(), leader1_type ...
for a single term with the support of the
Liberal-Democratic Party. He ran again in the
1965 Japanese House of Councillors election, but was defeated. Shimomura died in a
traffic accident
A traffic collision, also known as a motor vehicle collision, or car crash, occurs when a vehicle collides with another vehicle, pedestrian, animal, road debris, or other moving or stationary obstruction, such as a tree, pole or building. Tr ...
on 25 March 1968.
Decorations
* 1940 –
Order of the Golden Kite, 3rd class
[『官報』第4008号「叙任及辞令」May 20, 1940]
* 1940 –
Order of the Sacred Treasure, 2nd class
* 1944 – Grand Cordon of the
Order of the Sacred Treasure[『官報』第1850号「叙任及辞令」October 2, 1918]
* 1958 –

Grand Cordon of the
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 ...
Notes
References
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External links
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{{DEFAULTSORT:Shimomura, Sadamu
1887 births
1968 deaths
Politicians from Kōchi Prefecture
Imperial Japanese Army generals of World War II
Japanese military attachés
Ministers of the Imperial Japanese Army
Liberal Democratic Party (Japan) politicians
Members of the House of Councillors (Japan)
Members of the Kwantung Army
Road incident deaths in Japan
Grand Cordons of the Order of the Rising Sun
Recipients of the Order of the Golden Kite
Recipients of the Order of the Sacred Treasure, 1st class
Prisoners and detainees of the United States military