Tsutomu Sakuma

Tsutomu Sakuma
Lieutenant Tsutomu Sakuma
Born13 September 1879
Fukui, Japan
DiedApril 15, 1910(1910-04-15) (aged 30)
Inland Sea, Japan
AllegianceEmpire of Japan
Branch Imperial Japanese Navy
Years of service1901–1910
RankLieutenant
CommandsNo.4 submarine
Staff Officer 1st Fleet
The destroyer Harukaze (春風)
No.6 submarine
Battles / warsRusso-Japanese War

Tsutomu Sakuma (佐久間 勉, Sakuma Tsutomu; September 13, 1879 April 15, 1910) was a career naval officer in the Imperial Japanese Navy, and a pioneer submarine commander, known primarily as the commanding officer during the sinking of Submarine No.6.