Excerpts from Books and Wikipedia
"The defeat of Russia's Baltic fleet signals the arrival of Japan as a world power." [Furtado: 1001 Days] "Imperial Russia's prestige was badly damaged and the defeat was a blow to the Romanov dynasty.. . . Regan also believes the victory contributed to the Japanese road to later disaster, 'because the result was so misleading. Certainly the Japanese navy had performed well, but its opponents had been weak, and it was not invincible. . . . Togo's victory [helped] set Japan on a path that would eventually lead her to the Second World War. Isoroku Yamamoto, the future Japanese admiral who would go on to plan the attack on Pearl Harbor and command the Imperial Japanese Navy through much of the Second World War, served as a junior officer (aboard Nisshin) during the battle and was wounded by Russian gunfire." [Wikipedia]