Vice-Admiral 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 ...

Life and naval career

Niimi was born in what is now Asakita Ward, Hiroshima City, in

Hiroshima Prefecture is a Prefectures of Japan, prefecture of Japan located in the Chūgoku region of Honshu. Hiroshima Prefecture has a population of 2,811,410 (1 June 2019) and has a geographic area of 8,479 km² (3,274 sq mi). Hiroshima Prefecture borders Okayama ...

, as the second son to a farming and

soy sauce Soy sauce (also called simply soy in American English and soya sauce in British English) is a liquid condiment of Chinese origin, traditionally made from a fermented paste of soybeans, roasted grain, brine, and '' Aspergillus oryzae'' or ''Asp ...

producing family. He entered the Imperial Japanese Naval Academy on 2 December 1905 and graduated from its 36th class on 21 November 1908, ranking 15th out of 191 cadets. As a

midshipman A midshipman is an officer of the lowest rank, in the Royal Navy, United States Navy, and many Commonwealth navies. Commonwealth countries which use the rank include Canada (Naval Cadet), Australia, Bangladesh, Namibia, New Zealand, South Afr ...

, he served 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 ...

s and . He was commissioned an ensign on 15 January 1910 and promoted to sub-lieutenant on 1 December 1911. He attended naval artillery and

torpedo A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, su ...

school in 1910, and was then assigned back to the ''Aso'', followed by the

destroyer In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally developed in ...

. Promoted to lieutenant on 1 December 1914, he served on the cruiser ,

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 ...

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 ...

and destroyer . He attended the Naval War College (Japan) in 1917, specializing in naval artillery, graduating fourth in his class of 24 on 26 November 1919. He then became chief gunnery officer on the battleship and was promoted to

lieutenant commander Lieutenant commander (also hyphenated lieutenant-commander and abbreviated Lt Cdr, LtCdr. or LCDR) is a commissioned officer rank in many navies. The rank is superior to a lieutenant and subordinate to a commander. The corresponding rank i ...

on 1 December 1920. He 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 a naval attaché from 1923–1925, during which time he was further promoted to

commander Commander (commonly abbreviated as Cmdr.) is a common naval officer rank. Commander is also used as a rank or title in other formal organizations, including several police forces. In several countries this naval rank is termed frigate captain. ...

on 1 December 1924. In 1922, he wrote a report to the Navy General Staff on the importance of protecting merchant shipping in times of war.Evans. Kaigun. Page 530 On his return to Japan, he 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, o ...

on the cruiser in 1926. He was promoted to

captain Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, e ...

on 30 November 1929. On 1 April 1931, he was given his first command: the cruiser . He subsequently served as captain of the cruisers and . Niimi 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 ...

on 15 November 1935. In 1937, he accompanied Prince Chichibu to

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...

for the Coronation Ceremonies of

King George VI George VI (Albert Frederick Arthur George; 14 December 1895 – 6 February 1952) was King of the United Kingdom and the Dominions of the British Commonwealth from 11 December 1936 until his death in 1952. He was also the last Emperor of Ind ...

, afterwards visiting

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 ...

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

and the United States. After serving as chief of staff of the

Kure Naval District was the second of four main administrative districts of the pre-war Imperial Japanese Navy. Its territory included the Seto Inland Sea, Inland Sea of Japan and the Pacific Ocean, Pacific coasts of southern Honshū from Wakayama prefecture, Wakayam ...

and of the IJN 2nd Fleet, he was further promoted to vice admiral and Commandant of the Imperial Japanese Naval Academy on 15 November 1939. On 4 April 1941, he assumed command of the 2nd China Expeditionary Fleet, and was responsible for the naval component of the invasion of Hong Kong, where his duties primarily involved the blockade of Hong Kong harbor with small patrol craft and a couple of light cruisers. He nominally shared the position of Head of Japanese Occupation Forces in Hong Kong with General Takashi Sakai, but his authority was limited to offshore areas. On 14 July 1942, he became Commander in Chief of the Maizuru Naval District. He retired from active service in March 1944. Niimi survived the war and died in 1993, aged 106. At his death, he was the last surviving vice-admiral of the Imperial Navy.

References

; Notes ; Books * *

External links

* {{DEFAULTSORT:Niimi, Masaichi Imperial Japanese Navy admirals Japanese military personnel of World War I Japanese admirals of World War II Japanese occupation of Hong Kong 1887 births 1993 deaths People from Hiroshima Military personnel from Hiroshima Prefecture Japanese centenarians Men centenarians 20th-century Hong Kong people 20th-century Japanese politicians