Ōshima Ken'ichi in 1917
|Native name||大島 健一|
19 June 1858|
Gifu Prefecture, Japan
|Died||24 March 1947(aged 88)|
|Allegiance||Empire of Japan|
|Service/branch||Imperial Japanese Army|
|Years of service||1881–1916|
|Other work||Minister of War|
Ōshima Ken'ichi (大島 健一?, 19 June 1858 – 24 March 1947) was a general in the Imperial Japanese Army and Minister of War during World War I. His son, Hiroshi Ōshima was also a lieutenant general in the Army, and served as Japanese ambassador to Nazi Germany.
Ōshima was born in Iwamura domain, Mino Province (currently part of Ena City in Gifu Prefecture). He graduated from the 4th class of the Imperial Japanese Army Academy in 1881, where he specialized in artillery. He was sent overseas as a military attaché and for studies to France and Prussia from 1891–1893.
Ōshima served on the staff of General Yamagata Aritomo during the Japanese First Army in First Sino-Japanese War. During the Russo-Japanese War, he served on the Imperial General Headquarters, and after the war held various administrative and staff positions within the Imperial Japanese Army General Staff. He was promoted to major general in 1907 and to lieutenant general in 1913.
From 30 April 1916 to 29 September 1918, Ōshima was Minister of War under Prime Ministers Ōkuma Shigenobu and Terauchi Masatake. He entered the reserves in 1919 and served as a member of the House of Peers in the Diet of Japan from 1920. From 1940-1946, he was a member of the Privy Council.
- Harries, Meirion (1994). Soldiers of the Sun: The Rise and Fall of the Imperial Japanese Army. Random House. ISBN 0-679-75303-6.
- Wendel, Marcus. "Army Ministers of State". Axis History Factbook.
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- Wendel, Axis History Factbook
Mar 1916 – Sep 1918