Masahide Ota

Rear Admiral Ota Minoru commanded the Naval Base Force that defended the Oroku Peninsula on Okinawa. On 11 June 1945, the U.S. 6th Marine Division encircled the Naval Base Force and Ota sended his farewell telegram to the 32nd Army Headquarters at 1600, 12 June. On 13 June, Ota committed suicide.

Source: Huber, Thomas M. Japan's Battle of Okinawa, April-June 1945. Leavenworth Papers N° 18. ISSN 0195-3451. 1990.