was a

lieutenant general Lieutenant general (Lt Gen, LTG and similar) is a three-star military rank (NATO code OF-8) 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 ...

in the

Japanese Imperial Army The was the official ground-based armed force of the Empire of Japan from 1868 to 1945. It was controlled by the Imperial Japanese Army General Staff Office and the Ministry of the Army, both of which were nominally subordinate to the Emperor o ...

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 ...

Early life and education

Inada was born in

Tottori Prefecture is a prefecture of Japan located in the Chūgoku region of Honshu. Tottori Prefecture is the least populous prefecture of Japan at 570,569 (2016) and has a geographic area of . Tottori Prefecture borders Shimane Prefecture to the west, Hirosh ...

in August 1896. He graduated from the 29th class of the

Imperial Japanese Army Academy The was the principal officer's training school for the Imperial Japanese Army. The programme consisted of a junior course for graduates of local army cadet schools and for those who had completed four years of middle school, and a senior course f ...

in 1917, where he specialized in

artillery Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during siege ...

. He went on to graduate from the 37th class of the

Army Staff College Staff colleges (also command and staff colleges and War colleges) train military officers in the administrative, military staff and policy aspects of their profession. It is usual for such training to occur at several levels in a career. For exa ...

with honors in 1925.

Career

After serving in a number of administrative positions with the

Imperial Japanese Army General Staff The , also called the Army General Staff, was one of the two principal agencies charged with overseeing the Imperial Japanese Army. Role The was created in April 1872, along with the Navy Ministry, to replace the Ministry of Military Affairs ...

, Inada was assigned as a

military attaché A military attaché is a military expert who is attached to a diplomatic mission, often an embassy. This type of attaché post is normally filled by a high-ranking military officer, who retains a commission while serving with an embassy. Opport ...

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...

from 1929-1931. After his promotion to

colonel Colonel (abbreviated as Col., Col or COL) is a senior military officer rank used in many countries. It is also used in some police forces and paramilitary organizations. In the 17th, 18th and 19th centuries, a colonel was typically in charge of ...

, Inada served as Chief of the 2nd Section (Maneuvers & War Plans), 1st Bureau, of the General Staff from 1938 to 1939, and was thus involved in the planning of the

Battle of Wuhan The Battle of Wuhan (武漢之戰), popularly known to the Chinese as the Defense of Wuhan, and to the Japanese as the Capture of Wuhan, was a large-scale battle of the Second Sino-Japanese War. Engagements took place across vast areas of Anhui ...

and subsequent operations in 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 ...

. Inada was also involved in the planning for the ill-fated

Battle of Lake Khasan The Battle of Lake Khasan (29 July – 11 August 1938), also known as the Changkufeng Incident (russian: Хасанские бои, Chinese and Japanese: ; Chinese pinyin: ; Japanese romaji: ) in China and Japan, was an attempted military incurs ...

and

Battle of Khalkhin Gol The Battles of Khalkhin Gol (russian: Бои на Халхин-Голе; mn, Халхын голын байлдаан) were the decisive engagements of the undeclared Soviet–Japanese border conflicts involving the Soviet Union, Mongolia, Ja ...

in the Soviet-Japanese Border Wars. From 1940 Inada was commanding officer of a heavy artillery regiment based in Acheng in northern

Manchukuo Manchukuo, officially the State of Manchuria prior to 1934 and the Empire of (Great) Manchuria after 1934, was a puppet state of the Empire of Japan in Northeast China, Manchuria from 1932 until 1945. It was founded as a republic in 1932 afte ...

. In 1941 he became Vice

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 5th Army in Manchukuo. He was promoted to

major general Major general (abbreviated MG, maj. gen. and similar) is a military rank used in many countries. It is derived from the older rank of sergeant major general. The disappearance of the "sergeant" in the title explains the apparent confusion of a ...

in 1941, and became Chief of Staff of the 5th Army from 1942.Ammenthorp, The Generals of World War II Inada was then sent as Vice Chief of Staff of the

Southern Expeditionary Army Group ''Nanpō gun'' , image = 1938 terauchi hisaichi.jpg , image_size = 200px , caption = Japanese General Count Terauchi Hisaichi, right, commanding officer of the Southern Expeditiona ...

in the

Pacific Theater 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 ...

from 1942 to 1943. To support Japanese forces in

New Guinea New Guinea (; Hiri Motu Hiri Motu, also known as Police Motu, Pidgin Motu, or just Hiri, is a language of Papua New Guinea, which is spoken in surrounding areas of Port Moresby (Capital of Papua New Guinea). It is a simplified version of ...

he was sent in 1943 to command of the 2nd Field Operations Base Area. In 1944 he became commander of the 6th Air Division. Later that year, due to a diplomatic incident in

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bo ...

, he was placed in reserve, then reassigned as commander of the 3rd Shipping Transport Command, based in

Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, borde ...

. Promoted to

in April 1945, Inada was Chief of Staff of the 16th Area Army until 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 ...

Later life and death

After the end of the war, Inada was arrested by the American occupation authorities and tried before a

military tribunal Military justice (also military law) is the legal system (bodies of law and procedure) that governs the conduct of the active-duty personnel of the armed forces of a country. In some nation-states, civil law and military law are distinct bodie ...

held in

Yokohama is the second-largest city in Japan by population and the most populous municipality of Japan. It is the capital city and the most populous city in Kanagawa Prefecture, with a 2020 population of 3.8 million. It lies on Tokyo Bay, south of To ...

for war crimes. He was found guilty of his complicity in the cover-up of the vivisection and other human medical experiments performed at the

Kyushu Imperial University , abbreviated to , is a Japanese national university located in Fukuoka, on the island of Kyushu. It was the 4th Imperial University in Japan, ranked as 4th in 2020 Times Higher Education Japan University Rankings, one of the top 10 Desig ...

on downed Allied airmen. He was sentenced to 7 years in prison, and was released from prison in 1951. He died in 1986.

References

Books

* *

External links

Notes

{{DEFAULTSORT:Inada, Masazumi 1896 births 1986 deaths Military personnel from Tottori Prefecture Imperial Japanese Army generals of World War II People convicted in the Yokohama trials