The Pacific War Online Encyclopedia
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Omori Sentaro was born in Kumamoto prefecture and graduated from the Naval Academy in 1913. He became a torpedo expert and held several destroyer commands. He commanded battleship Ise in 1939-1940 and was promoted to rear admiral in 1940.
Omori commanded Destroyer Squadron 1 at the start of the Pacific war. This force accompanied the Pearl Harbor Attack Force and also participated in the Indian Ocean raid. He directed the occupation of Attu during the Midway campaign, and subsequently rose to rank of vice admiral and command of Cruiser Division 5. He was ordered to attack the American transports off Bougainville in early November 1943, which led to a decisive Japanese defeat at the Battle of Empress Augusta Bay. His heavy cruisers narrowly escaped serious damage in an air raid at Rabaul the next day, escaping to Truk. He was subsequently relieved of his command for failing to defeat an inferior force, and spent the remainder of the war in noncritical instructional and staff positions.
Omori was a quiet man with a somewhat shy demeanor.
| 1892-10-3 | born in Kumamoto prefecture |
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| 1913-12-19
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Midshipman |
Graduates from Naval Academy, standing 16th in a class of 118. Assigned to AC Adzuma |
| 1914-8-11 | Kongo | |
| 1914-8-21 | BB Iwami | |
| 1914-12-1 | Ensign | |
| 1915-2-12 | Kongo | |
| 1916-6-1 | Yamashiro |
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| 1916-12-1 | Lieutenant junior
grade |
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| 1917-7-2 | Member, Torpedo Boat Division 2 |
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| 1917-12-1 | Torpedo School Basic Course | |
| 1918-5-20 | Gunnery School Basic Course | |
| 1918-12-1 | DD Shirayuki | |
| 1919-12-1 | Lieutenant | Torpedo School Advanced Course |
| 1920-12-1 | Commander, Torpedo Boat Division 15 |
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| 1921-7-20 | Ashi | |
| 1922-12-1 | Nokaze | |
| 1923-12-1 | Commander, DD Hibiki | |
| 1924-6-3 | 1 Naval District |
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| 1924-7-18 | Haruna |
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| 1924-11-1 | Instructor, Torpedo School |
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| 1925-12-1 | Lieutenant
commander |
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| 1928-12-10 | Staff, Combined Fleet |
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| 1930-11-15 | Commander, Namikaze | |
| 1931-11-2 | Commander, Yugiri | |
| 1932-12-1 | Instructor,Torpedo School | |
| 1934-10-22 | Commander, Destroyer Division 16 |
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| 1934-11-15 | Captain | |
| 1935-11-15 | Commander, Destroyer Division 21 |
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| 1936-12-1 | Navy General Staff |
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| 1936-12-5 | Naval College Expert Course | |
| 1937-9-18 | Commander, Kamikawa Maru | |
| 1937-12-1 | Chief Instructor, Torp.School | |
| 1939-11-15 | Commander, Ise | |
| 1940-10-15 | Commander, Destroyer Squadron 1 |
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| 1940-11-15 | Rear admiral |
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| 1942-11-5 | Navy
General Staff |
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| 1942-11-10 | Commander, Cruiser Division 5 |
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| 1943-11-25 | Schoomaster, Torpedo School |
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| 1944-5-1 | Vice admiral |
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| 1944-9-13 | Director, Special Attack Division, Navy
Ministry |
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| 1945-8-10 | Staff, Imperial General Headquarters |
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| 1945-8-20 | Commander, 7
Fleet |
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| 1945-9-15 | Navy
General Staff |
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| 1945-10-10 | Retires |
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| 1974-12-24 | Dies |
References
Materials of IJN (accessed 2008-1-4)
The Pacific War Online Encyclopedia © 2007, 2009 by Kent G. Budge. Index
