Umi Yukaba - (Recording in 1941)

-Sung by the Tokyo Music School band in 1941.
"Umi Yukaba" (海行かば) is a Japanese song whose lyrics are based on a chōka poem by Ōtomo no Yakamochi in the Man'yōshū (poem 4094), an eighth century anthology of Japanese poetry, set to music by Kiyoshi Nobutoki.
The poem is part of Ōtomo no Yakamochi's famous long poem celebrating the imperial edict on the discovery of gold in Michinoku province (modern Tohoku) in 749. The distant ancestors of the Ōtomo clan were known as masters of the royal Kume guard. The poem reflects their pledge to serve their sovereign.

"Umi Yukaba" later became popular among the military, especially with the Imperial Japanese Navy. As set to music in 1937 by Kiyoshi Nobutoki (信時 潔, Nobutoki Kiyoshi) it became popular during and also after World War II. After Japan surrendered in 1945, "Umi Yukaba" and other gunka were banned by the Allied occupation forces. With the ending of the occupation, the song has now been widely played across military circles in Japan, including performances by the Japan Maritime Self-Defense Force.

Prior to Nobutoki’s composition, the poem had been set to music in the trio section of the Gunkan kōshinkyoku.
https://en.wikipedia.org/wiki/Umi_Yukaba
-In the pictures are soldiers of the Japanese imperial army between 1900 s - 1940s, and the three Emperors: Meiji, Taisho and Hirohito.