Ōshima Yoshimasa

Ōshima Yoshimasa
General Ōshima Yoshimasa
Native name	大島 義昌
Born	(1850-09-20)20 September 1850 Chōshū Domain, Japan
Died	10 April 1926(1926-04-10) (aged 75)
Allegiance	Empire of Japan
Service/branch	Imperial Japanese Army
Years of service	1871–1912
Rank	General
Battles/wars	First Sino-Japanese War Russo-Japanese War
Awards	Order of the Rising Sun, 1st class
Other work	Governor-General of Kwantung Leased Territory

Viscount Ōshima Yoshimasa (大島 義昌^?, 20 September 1850 – 10 April 1926) was a general in the early Imperial Japanese Army during the First Sino-Japanese War and the Russo-Japanese War. His great grandson, Shinzō Abe is Prime Minister of Japan.

Ōshima was born as the eldest son to a samurai of Chōshū Domain (present-day Yamaguchi Prefecture), and fought as a member of the Satchō Alliance forces in support of Emperor Meiji during the Boshin War against the Tokugawa shogunate. After the Meiji Restoration, he attended military school in Osaka in 1870 and was commissioned as a lieutenant in the fledgling Imperial Japanese Army in August 1871. Assigned to the IJA 4th Infantry Regiment, he was promoted to captain the following year, and became battalion commander of the IJA 1st Infantry Regiment in 1873. During the Satsuma Rebellion of 1877, he was promoted to major. After the war, he served in a number of staff positions with the Sendai Garrison and became a colonel in 1886. In 1887 he became chief-of-staff of the Tokyo Garrison and following the reorganization of the Imperial Japanese Army under the recommendations of Prussian military advisor Jakob Meckel, he became chief-of-staff of the IJA 1st Division. In June 1891, Ōshima was promoted to major general and was assigned command of the IJA 9th Infantry Brigade, which was also styled the “Ōshima Combined Brigade”. Dispatched to the Korean Peninsula in 1894 during the Donghak Rebellion, his 4,000 man force was tasked with expelling the Empire of China's Beiyang Army from Korean territory by force.