View source for Kuniaki Koiso

{{Short description|Prime Minister of Japan from 1944 to 1945}}
{{more footnotes needed|date=December 2012}}
{{Use mdy dates|date=December 2013}}
{{Infobox officeholder
| honorific_prefix    = [[Junior Second Rank]]
| name                = Kuniaki Koiso
| native_name         = {{nobold|小磯 國昭}}
| native_name_lang    = ja
| image               = Kuniaki Koiso 2.jpg
| imagesize           = 
| office              = [[Prime Minister of Japan]]
| monarch             = [[Hirohito]]
| term_start          = 22 July 1944
| term_end            = 7 April 1945
| predecessor         = [[Hideki Tojo]]
| successor           = [[Kantarō Suzuki]]
| office1             = [[Imperial Rule Assistance Association|President of the Imperial Rule Assistance Association]]
| deputy1             = [[Taketora Ogata]]
| term_start1         = 22 July 1944
| term_end1           = 7 April 1945
| predecessor1        = Hideki Tojo
| successor1          = Kantarō Suzuki
| office2             = [[Governor-General of Chōsen|Governor-General of Korea]]
| monarch2            = Hirohito
| term_start2         = 15 June 1942
| term_end2           = 22 July 1944
| predecessor2        = [[Jirō Minami]]
| successor2          = [[Nobuyuki Abe]]
| office3             = [[Ministry of Colonial Affairs (Japan)|Minister of Colonial Affairs]]
| primeminister3      = [[Mitsumasa Yonai]]
| term_start3         = 16 January 1940
| term_end3           = 22 July 1940
| predecessor3        = [[Tsuneo Kanemitsu]]
| successor3          = [[Yōsuke Matsuoka]]
| primeminister4      = [[Hiranuma Kiichirō|Kiichirō Hiranuma]]
| term_start4         = 7 April 1939
| term_end4           = 30 August 1939
| predecessor4        = [[Yoshiaki Hatta]]
| successor4          = Tsuneo Kanemitsu
| signature           = KoisoK kao.png
| birth_date          = {{birth date|df=yes|1880|3|22}}
| birth_place         = [[Utsunomiya, Tochigi]], [[Empire of Japan]]
| death_date          = {{death date and age|df=yes|1950|11|3|1880|3|22}}
| death_place         = [[Sugamo Prison]], [[Tokyo]], [[Occupation of Japan|Allied-occupied Japan]]
| restingplace        = [[Aoyama Cemetery]]
| spouse              = {{marriage|Kaoriko Koiso|1907|1950|reason=died}}
| party               = [[Imperial Rule Assistance Association]] (1940–1945)
| otherparty          = [[Sakurakai]]
| alma_mater          = [[Imperial Japanese Army Academy]]<br>[[Army War College (Japan)|Army War College]]
| profession          = [[military|Soldier]]
| allegiance          = {{flagcountry|Empire of Japan}}
| branch              = {{army|Empire of Japan}}
| serviceyears        = 1900–1938
| rank                = [[File:帝國陸軍の階級―襟章―大将.svg|35px]] [[General]]
| commands            = {{Plainlist|
* [[Japanese Korean Army]]
* [[Volunteer Fighting Corps]]}}
| caption             = Koiso {{circa}} 1940s
}}
{{nihongo|'''Kuniaki Koiso'''|{{linktext|小磯}} {{linktext|國昭}}|Koiso Kuniaki|extra= 22 March 1880 – 3 November 1950}} was a Japanese politician and general who served as [[prime minister of Japan]] from 1944 to 1945, during [[World War II]]. He previously served as minister of colonial affairs in 1939 and 1940, and as [[Governor-General of Chōsen|governor-general of Korea]] from 1942 to 1944. Koiso resigned as premier after the start of the [[Battle of Okinawa]], and following Japan's surrender he was convicted as a [[Class A war criminal]] and sentenced to [[life imprisonment]], dying in prison in 1950.

==Early life==
Koiso was born on March 22, 1880, in [[Utsunomiya]], [[Tochigi Prefecture]], the first son of [[Chief inspector|chief inspector of police]] and ''[[shizoku]]'' (former [[samurai]]) Koiso Susumu.<ref>{{Cite book |last1=Handō |first1=Kazutoshi |title=Rekidai Rikugun Taishō zenran. Shōwa hen. Manshū Jihen, Shina Jihenki |last2=半藤一利 |date=2010 |others=Keiichi Yokoyama, Ikuhiko Hata, Takeshi Hara, 横山恵一, 秦郁彦, 原剛 |publisher=中央公論新社 |isbn=978-4-12-150337-4 |at=No. 3720-4133 |oclc=500498531}}</ref> He attended eight different schools, graduating from Yamagata Middle School (today Yamagata Prefectural Yamagata East High School). He was accepted as an officer candidate in 1898.

==Military career==
Koiso graduated from the [[Imperial Japanese Army Academy]] in 1900 and went on to attend the [[Army War College (Japan)|Army Staff College]]. Commissioned a [[2nd Lieutenant]] in the 30th Infantry Regiment in June 1901, he was promoted to [[Lieutenant]] in November 1903. During the [[Russo-Japanese War]], he served as Battalion Adjutant in September 1904, Company Commander in March 1905 and was promoted to [[captain (land)|captain]] in June 1905.

In November 1910, Koiso graduated from the [[Army War College (Japan)|Army Staff College]], 33rd in a class of 55, and returned to the Imperial Japanese Army Academy as an instructor in December 1910.

Reassigned to the [[Kwantung Army]] General Staff in September 1912, Koiso was promoted to [[Major (rank)|major]] and Battalion Commander of the 2d Infantry Regiment in August 1914. He returned to the [[Imperial Japanese Army General Staff]] Headquarters in June 1915, was promoted to [[lieutenant colonel]] in July 1918, and seconded to the [[Imperial Japanese Army Air Service]] in July 1921. After his promotion to [[colonel]] in February 1922, he was sent as a [[military attaché]] to Europe in June 1922, returning to assume command of the [[IJA 51st Division]] in August 1923. Returning to the Army General Staff in May 1925, he was promoted to [[major general]] in December 1926 and [[lieutenant general]] in August 1931.

During the 1920s Koiso joined the relatively moderate ''[[Tōseiha]]'' (Control Faction) led by General [[Kazushige Ugaki]], along with [[Gen Sugiyama]], [[Yoshijirō Umezu]], [[Tetsuzan Nagata]], and [[Hideki Tōjō]] as opposed to the more radical ''[[Kōdōha]]'' (Action Faction) under [[Sadao Araki]].

In February 1932, Koiso became [[Ministry of War (Japan)|Vice-Minister of War]] and in August 1932, concurrently [[Chief of staff (military)|Chief of Staff]] of the Kwantung Army. In March 1934, he was transferred to command the [[IJA 5th Division]] ([[Hiroshima]]). He then assumed command of the [[Chosen Army|Chōsen Army]] in [[Korea under Japanese rule|Korea]] from December 1935. Promoted to full [[general]] in November 1937, he joined the Army General Staff in July 1938.

==Colonial affairs and Korea==
{{See also|Korea under Japanese rule}}
[[File:Kuniaki koiso.jpg|thumb|left|175px|Kuniaki Koiso as the Governor General of Korea]]
Koiso left active duty in July 1938. From April to August 1939, he served in the cabinet of Prime Minister [[Hiranuma Kiichirō]] as [[Ministry of Colonial Affairs (Japan)|Minister of Colonial Affairs]]. He returned to the same post again from January to July 1940 under the [[Mitsumasa Yonai|Yonai administration]].

Koiso was appointed [[Governor-General of Korea]], succeeding [[Jirō Minami]], from May 1942 to 1944, during which time he gained the nickname "The Tiger of Korea" for his looks rather than his military prowess.<ref>[[John Toland (author)|Toland, John]]: ''[[The Rising Sun: The Decline and Fall of the Japanese Empire, 1936–1945]]'', page 529</ref> Koiso continued his predecessor's hardline policies, such as imposing the highly unpopular universal [[military conscription]] on Koreans, which forced them to fight for the Japanese, on August 1, 1943.<ref>Pratt, ''Everlasting Flower''</ref>

When news of [[National Liberation Day of Korea|Korean independence]] reached him after the war, Koiso scoffed "the dream of Korean independence is as foolish as trying to plot the independence of [[Kyushu]] or [[Hokkaido]]."{{citation needed|date=July 2022}}

==Premiership (1944–1945)==
{{Infobox premiership
| image        = Kuniaki Koiso.jpg
| caption      = 
| name         = Premiership of Kuniaki Koiso
| party        = [[Imperial Rule Assistance Association]]
| monarch      = [[Hirohito|Emperor Shōwa]]
| seat         = [[Naikaku Sōri Daijin Kantei]]
| constituency = 
| term_start  = 22 July 1944
| term_end    = 7 April 1945
| cabinet     = [[Koiso Cabinet]]
| election    = 
| predecessor = [[Hideki Tojo#Premiership (1941–1944)|Hideki Tojo]]
| successor   = [[Kantarō Suzuki#Premiership (1945)|Kantarō Suzuki]]
| seal         = Emblem of the Government of Japan.svg
| seal_caption = Emblem of the Government of Japan
}}
{{seealso|Koiso Cabinet}}
After the [[Operation Overlord|Allied landing in Normandy]] (June 6) and the successful [[Battle of Saipan|capture of Saipan]] (9 July), [[Hideki Tojo]] resigned and a new cabinet was formed. In selecting a new [[Prime Minister of Japan|prime minister]], the elder statesmen narrowed the candidates down to three: [[Hisaichi Terauchi]] (commander of the [[Southern Expeditionary Army Group]]), [[Shunroku Hata]] (commander of the [[China Expeditionary Army]]), and Koiso.

The Army strongly favored General [[Hisaichi Terauchi]]; however, they could not afford to recall him to Japan from his role as commander-in-chief of all [[Southern Expeditionary Army Group|Japanese forces in Southeast Asia]]. The civilian government, especially [[Lord Keeper of the Privy Seal of Japan|Lord Keeper of the Privy Seal]] [[Kōichi Kido]] and former prime minister [[Fumimaro Konoe]], also did not favor Koiso, due to Koiso's previous involvement with the ultranationalist ''[[Sakura Kai]]'' and its attempted [[coup d'état]] against the government in 1931 (i.e. the "[[March Incident]]"). These reservations were shared by the [[Hirohito|Emperor]] in his [[Privy Council (Japan)|Privy Council]] meetings. Koiso was supported by two former prime ministers, [[Mitsumasa Yonai]] and [[Hiranuma Kiichirō]], and as no consensus could be reached on a more suitable alternative, their arguments prevailed.<ref>{{Cite book |author=Terasaki Hidenari|title=昭和天皇独白録 Showa Tenno Dokuhakuroku|year=1995|publisher=[[Bungeishunjū]]|isbn=4167198037}}</ref> Moreover,  [[Mitsumasa Yonai]] was appointed vice-prime minister as a way of dealing with strong objections to Koiso. 
[[Image:Kuniaki Koiso Cabinet 19440722.png|thumb|left|190px|Kuniaki Koiso (third from left on front row) with his cabinet after being named prime minister]]
[[File:Koiso giving Policy Address at House Chamber 1945.jpg|thumb|170px|Koiso giving his administrative policy speech at the 86th [[National Diet|Imperial Diet]] in January 1945.]]

Koiso attempted to end army-navy rivalry by creating a Supreme Chief of Staff (最高幕僚長), but this was structured to favor the army, thus bitter opposition from the navy doomed the plan. Instead, a Supreme War Guidance Council (最高戦争指導会議) was created (August 4, 1944 – August 22, 1945). Koiso was not taken seriously at Council meetings, where he was openly contradicted by Hata Hikosaburo. Within the top levels of the Imperial Army, rumors circulated that the Koiso Cabinet would only last two months (it lasted nine months).

Koiso's strategy for ending the war was to strike a hard blow against the American Army in the Philippines, forcing negotiations. However, the general entrusted with the defense of the Philippines, [[Tomoyuki Yamashita]], disagreed with the planners in the Southern Expeditionary Army. As such, the Army and Navy could not agree on a coordinated plan.<ref>『昭和天皇独白録』p.117</ref> Nevertheless, the defenders were prepared to make considerable sacrifices when [[Douglas MacArthur]] invaded [[Battle of Leyte|Leyte]] on October 17, with the first [[kamikaze]] attack carried out on October 21, and the Japanese Navy losing four aircraft carriers and three battleships during the [[Battle of Leyte Gulf]]. Although the strategy had failed, Koiso did not change his way of thinking. Late in 1944, Koiso still planned to send Prince [[Fumimaro Konoe]] on a peace mission to neutral countries, [[Switzerland]] and [[Sweden]], but it came to nothing.

During the remainder of Koiso's premiership in office, Japanese forces continued to suffer a string of defeats on all fronts at the hands of the [[Allies of World War II|Allies]]. Also during his premiership, on 10 November 1944, [[Wang Jingwei]] died of [[pneumonia]] in a Japanese hospital in [[Nagoya]], which effectively was the end of the [[Reorganized National Government of China]] in northern China. For a time, Koiso considered making peace, but he could not find a solution that would appease both the Japanese military and the Allies.  Left with little choice but to continue the war effort, Koiso tried to extend his power over the army by attempting to assume the position of War Minister concurrently with that of Prime Minister, but was unable to legally do so as he was on the reserve list. Koiso resigned in April 1945 when [[Battle of Okinawa|American forces invaded Okinawa]] and his demands to be included in military decisions were rejected, the same date the [[Imperial Japanese Navy]] flagship {{ship|Japanese battleship|Yamato||2}} was sunk by American aircraft during [[Operation Ten-Go]].<ref>Frank, ''Downfall: The End of the Imperial Japanese Empire''</ref>

==Later career==
Koiso was an ardent supporter of [[State Shinto]] along with [[Heisuke Yanagawa]], who directed the Government Imperial Aid Association. He restored the ancient sacred rites in the [[Sukumo]] river, near [[Hakone]], the "[[Preliminary Misogi Rite]]".

After the end of World War II, Koiso was arrested by the [[Supreme Commander of the Allied Powers|Allied occupation powers]] and tried by the [[International Military Tribunal for the Far East]] for [[war crimes]].  Upon conviction as a [[Class-A war criminal]] on counts 1, 27, 29, 31, 32 and 55, he was given a sentence of [[life imprisonment]].<ref>Maga, ''Judgement at Tokyo''</ref> The Tribunal specifically cited Koiso's decisive role in starting the wars against China and the Allies. "Furthermore, despite the fact that Kuniaki Koiso was not directly responsible for the war crimes committed by the Japanese Army, he took no measures to prevent them or to punish the perpetrators when, as Prime Minister, it was within his power to do so."<ref>{{Cite web |url=http://www.trial-ch.org/en/trial-watch/profile/db/legal-procedures/kuniaki_koiso_596.html |title=Bedat |access-date=October 8, 2007 |archive-date=June 29, 2012 |archive-url=https://archive.today/20120629231454/http://www.trial-ch.org/en/trial-watch/profile/db/legal-procedures/kuniaki_koiso_596.html |url-status=dead }}</ref> Koiso died of [[esophageal cancer]] in [[Sugamo Prison]] in 1950. His grave is at the [[Aoyama Cemetery]] in central Tokyo.

==Honors==
''From the corresponding article in the Japanese Wikipedia''

*Grand Cordon of the [[Order of the Rising Sun]] (April 5, 1934)
*Grand Cordon of the [[Order of the Sacred Treasure]] (April 29, 1934)
*[[Order of the Golden Kite]], 2nd class (April 29, 1934)

==References==

===Books===
*{{cite book|last=Frank|first=Richard B.| author-link = Richard B. Frank|year=2001|title=Downfall: The End of the Imperial Japanese Empire|publisher=Penguin|isbn=0-14-100146-1}}
*{{cite book|last=Maga|first=Timothy P.|year=2001|title=Judgment at Tokyo: The Japanese War Crimes Trials|publisher=University Press of Kentucky|isbn=0-8131-2177-9}}
*{{cite book|last=Pratt|first=Keith|year=2007|title=Everlasting Flower: A History of Korea|publisher=Reaktion Books|isbn=978-1-86189-335-2}}
*{{cite book|last=Toland|first=John|author-link=John Toland (author)|year=2003|title=[[The Rising Sun: The Decline and Fall of the Japanese Empire, 1936–1945]]|publisher=Modern Library|isbn=0-8129-6858-1}}

===Sources===
{{reflist}}

== External links ==
{{commons category|Kuniaki Koiso}}
*{{cite web|last=Chen|first=Peter|url=http://ww2db.com/person_bio.php?person_id=255|title=Kuniaki Koiso|work=WW2 Database}}
*{{cite web|last=Bedat|first=J|url=http://www.trial-ch.org/en/trial-watch/profile/db/legal-procedures/kuniaki_koiso_596.html|title=Kuniaki Koiso|work=Trial Watch|access-date=October 8, 2007|archive-date=June 29, 2012|archive-url=https://archive.today/20120629231454/http://www.trial-ch.org/en/trial-watch/profile/db/legal-procedures/kuniaki_koiso_596.html|url-status=dead}}
*{{cite web|last=Clancy|first=Patrick|url=http://www.ibiblio.org/hyperwar/PTO/IMTFE/IMTFE-10.html|title=HyperWar:IMTFE Judgement|work= HyperWar Foundation}}

{{S-start}}
{{s-off}}
{{s-bef|before=[[Yoshiaki Hatta]]}}
{{s-ttl|title=[[Ministry of Colonial Affairs (Japan)|Minister of Colonial Affairs]]|years=1939}}
{{s-aft|after=[[Tsuneo Kanemitsu]]}}
|-
{{s-bef|before=[[Tsuneo Kanemitsu]]}}
{{s-ttl|title=[[Ministry of Colonial Affairs (Japan)|Minister of Colonial Affairs]]|years=1940}}
{{s-aft|after=[[Yōsuke Matsuoka]]}}
|-
{{s-bef|before=[[Jirō Minami]]}}
{{s-ttl|title=[[Governor-General of Korea|Governor General of Korea]]|years=1942&ndash;1944}}
{{s-aft|after=[[Nobuyuki Abe]]}}
|-
{{s-bef|before=[[Hideki Tōjō]]}}
{{s-ttl|title=[[Prime Minister of Japan]]|years=1944&ndash;1945}}
{{s-aft|after=[[Kantarō Suzuki]]}}
{{S-end}}

{{Prime Ministers of Japan}}
{{Shōwa nationalism}}
{{Authority control}}

{{DEFAULTSORT:Koiso, Kuniaki}}
[[Category:1880 births]]
[[Category:1950 deaths]]
[[Category:20th-century prime ministers of Japan]]
[[Category:People from Utsunomiya, Tochigi]]
[[Category:Imperial Japanese Army generals of World War II]]
[[Category:Governors-general of Chōsen]]
[[Category:Japanese people convicted of war crimes]]
[[Category:Japanese military personnel of the Russo-Japanese War]]
[[Category:World War II political leaders]]
[[Category:Recipients of the Order of the Rising Sun]]
[[Category:Recipients of the Order of the Sacred Treasure]]
[[Category:Recipients of the Order of the Golden Kite]]
[[Category:Japanese people convicted of the international crime of aggression]]
[[Category:Japanese prisoners sentenced to life imprisonment]]
[[Category:Prisoners sentenced to life imprisonment by international courts and tribunals]]
[[Category:People convicted by the International Military Tribunal for the Far East]]
[[Category:Japanese people who died in prison custody]]
[[Category:Deaths from esophageal cancer in Japan]]
[[Category:Kokkashugi]]
[[Category:Ministers of former Japanese ministries]]
[[Category:Japanese politicians convicted of crimes]]
[[Category:Imperial Rule Assistance Association politicians]]
[[Category:Imperial Rule Assistance Association prime ministers of Japan]]
[[Category:Heads of government convicted of war crimes]]
[[Category:Heads of state and government who were later imprisoned]]
[[Category:Burials at Aoyama Cemetery]]