Sentarō Ōmori

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Sentarō Ōmori
3 October 1892 - 24 December 1974^[1]

Place of birth	Kumamoto Prefecture, Japan
Allegiance	Empire of Japan
Service/branch	Imperial Japanese Navy
Years of service	1913-1945
Rank	Vice Admiral
Commands held	Hibiki, Namikaze, Kamikaze, Yugiri, Kawakami maru, Ise 1st Destroyer Squadron, 5th Cruiser Division, IJN 7th Fleet
Battles/wars	World War II oAttack on Pearl Harbor oIndian Ocean Raid oBattle of the Aleutian Islands oBattle of Empress Augusta Bay

In this Japanese name, the family name is Ōmori.

Vice Admiral Sentarō Ōmori (大森仙太郎, Ōmori Sentarō^?, 3 October 1892 - 24 December 1974), was an admiral in the Imperial Japanese Navy during World War II.

1 Biography
- 1.1 Early life
- 1.2 World War II
2 References
- 2.1 Books
- 2.2 External links
3 Notes

[edit] Biography

[edit] Early life

Ōmori Sentarō was born in Kumamoto prefecture and graduated from the 41st class of the Imperial Japanese Naval Academy in 1913. He was ranked 16th out of 118 cadets. He served his midshipman duty aboard the cruiser Azuma, battleships Kongō and Iwami, and was commissioned as an ensign in 1914. He subsequently served on the Yamashiro and Shirayuki.

Ōmori returned to school, and became a torpedo expert. He served as lieutenant on the Ashi, Nokaze and the Mutsu before being given his first command: the destroyer Hibiki on 1 December 1923.

Through the 1920 and 1930s, Ōmori subsequently commanded Namikaze, Kamikaze, Yugiri, seaplane tender Kawakami maru, and finally the battleship Ise from 1939-1940, while steadily increasing in rank and returning at regular intervals to torpedo school to remain expert on the latest developments in torpedo technology and tactics. He was promoted to rear admiral on 15 November 1940.

[edit] World War II

At the start of World War II, Ōmori was in command of Destroyer Squadron 1 (DesRon1), which accompanied the main strike force during the attack on Pearl Harbor. It also participated in the Indian Ocean Raid of early 1942. During the Battle of Midway, DesRon1 directed the occupation of Attu Island in the Battle of the Aleutian Islands. Omori was subsequently promoted to vice admiral, and given command of Cruiser Division 5 (CruDiv5). Assigned to the Solomon Islands, he was ordered to attack American transports off Bougainville Island in early November 1943. In the resultant Battle of Empress Augusta Bay November 1 - 2, 1943, the Japanese forces (heavy cruisers Myoko and Haguro, light cruisers Agano and Sendai, and destroyers Shigure, Samidare, Shiratsuyu, Naganami, Hatsukaze, and Wakasuki) suffered a decisive defeat. Ōmori and his heavy cruisers narrowly escaped damage in an air raid at Rabaul, New Britain the following day, and retreated to the main Japanese base at Truk, Caroline Islands. Ōmori was relieved of his command for having withdrawn at Empress Augusta Bay against an inferior force and was sent back to Japan.

Ōmori became Commandant of the Torpedo School, and was promoted to vice admiral on 1 July 1944. He was director of the Special Attack Division from 13 September 1944 – 10 August 1945, supervising work with the Kaiten human-guided torpedoes. At the very end of World War II, he was appointed Commander in Chief of the IJN 7th Fleet.

Ōmori died on 24 December 1974.

[edit] References

[edit] Books

D'Albas, Andrieu (1965). Death of a Navy: Japanese Naval Action in World War II. Devin-Adair Pub. ISBN 0-8159-5302-X.
Dull, Paul S. (1978). A Battle History of the Imperial Japanese Navy, 1941-1945. Naval Institute Press. ISBN 0-87021-097-1.
Fuller, Richard (1992). Shokan: Hirohito's Samurai. London: Arms and Armour Press. ISBN 1854091514.
Hara, Tameichi (1961). Japanese Destroyer Captain. New York & Toronto: Ballantine Books. ISBN 0-345-27894-1.
Kilpatrick, C. W. (1987). Naval Night Battles of the Solomons. Exposition Press. ISBN 0-682-40333-4.
Lacroix, Eric; Linton Wells (1997). Japanese Cruisers of the Pacific War. Naval Institute Press. ISBN 0-87021-311-3.
McGee, William L. (2002). "Bougainville Campaign", The Solomons Campaigns, 1942-1943: From Guadalcanal to Bougainville--Pacific War Turning Point, Volume 2 (Amphibious Operations in the South Pacific in WWII). BMC Publications. ISBN 0-9701678-7-3.
Morison, Samuel Eliot (1958). Breaking the Bismarcks Barrier, vol. 6 of History of United States Naval Operations in World War II. Castle Books. ISBN 0-7858-1307-1.