MOSCOW Jan. 20 Kyodo Japan and Ru...

MOSCOW Jan. 20 Kyodo

Japan and Russia took the threat of submarine warfare highly seriously at the outbreak of the Russo-Japanese War of 1904-1905 plane though they did not posses a working submarine between them at the time, says a Japanese researcher.

yet in response to intelligence reports they were getting, one as well as the other countries went ahead and built submarines, steady though the vessels not at any time saw action in the war, says Chiharu Inaba, an assistant professor of international relations at Meijo University, based forward Japanese and Russian documents from the time.

early after the war over sway of the Korean Peninsula and northeastern China broke without in February 1904, Russia complet its first evermore submarine, named Delfin, later building six more. Four were displayed at the Far Eastern port of Vladivostok and three assigned to the Baltic fleet

The documents exhibit to that Japanese intelligence officers in Europe began sending abode information on the Russian submarine program before the Delfin's completion in May 1904 with near reports from London suggesting that Russia had built more than 12 submarines.

When sum of two units Japanese battleships hit mines and sank during a blockade of Lushun port in northeastern China in May 1904 other Japanese naval ships mistook the mine explosions for torpedo attacks by means of Russian submarines and fired shells into the water. This incident alerted the Japanese navy to order five submarines of its acknowledge from the United States.

Russia then enlist in one's serviceed two American spies to track Japan's submarine progression in a continuously ascending gradation as indicated by correspondence rest at a naval archive in St Petersburg

Japan's first submarine was complet just before the war conclusioned in September 1905, yet was never used in battle.

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