On August 10, the 1st Squadron, headed for the interception of the Lushun fleet led by Maj. Gen. Wilgelm Vitgeft, who set out in Lushun. The Japanese saw the Russians at 12:30, but decided that the Russian troops would return to Lushun and acted to cut off their retreat.『大海軍を想う』「旅順艦隊の撃滅」 However, the Russian destination was Vladivostok and the distance between the two units increased. The Japanese moved to chase and resumed firing at 17:30. The fleets of both countries continued to fire in parallel battles, but the sunset was approaching and there was not enough time left for the Japanese side to attack. However, at 18:37, a 12-inch shell from Mikasa hit the Russian flagship Tsesarevich and Vitgeft's officers were killed in action. The Russian Pacific Squadron fell into a state of turmoil, and its strength declined due to scuttling during the Battle of Korsakov and detention at a neutral port. Those who returned to Lushun lost their fighting ability due to the bombardment of the Third Fleet. The Navy Heavy Artillery Corps under the command of Lieutenant Colonel , and found the weaknesses of "Crossing the T" in the battle and the strategy was abandoned by the Battle of Tsushima.『日本海海戦かく勝てり』
