During the Russo-Japanese War, at 2:27 p.m. on September 1, 1904, in the Liaoyang Battle, the Japanese Army worked to collect the bodies of the dead of the 34th Infantry Regiment at a trench position on the southern highlands of Shusanbao.

During the Russo-Japanese War, at 2:27 p.m. on September 1, 1904, at the trench position on the high ground south of Shusanbao, the Japanese Army was engaged in collecting the bodies of the dead of the 34th Infantry Regiment. The trenches were littered with the corpses of Japanese and Russian soldiers killed in action. The capture of the Sosan Redoubt took a fierce toll, and in the early morning of August 30, 1904, the Second and Fourth Armies launched an attack against the Sosan Redoubt. However, they struggled against the strong positions of the Russian forces and the battle line stalled, and on August 31, Shuta Tachibana, who later became a military deity, was killed in a spectacular battle. In order to break the war situation, the First Army secretly began crossing the Taishi River from the night of August 30. It was able to flank the Russian forces east of Liaoyang, and on September 1, the 2nd Division occupied Mount Manjusan and the 12th Division occupied Mount Wu Ting Shan.

 　The Russians, fearing a retreat to the First Army deployed on their flanks, withdrew the units confronting the Second and Fourth Armies to the Second Defense Line. Some of them were deployed to the east of Liaoyang. The Second Army, which was struggling, was able to capture the Sosanbao area while pursuing the Russian forces that had begun to retreat. This time, the First Army was under the onslaught of the Russian forces. The battle lines on all sides were at a stalemate. The Russians were ordered to withdraw on September 4 in preparation for a decisive battle in the Mukden area.

　The Japanese forces, numbering some 130,000 troops, and the Russians, numbering some 220,000 troops, launched a general attack on August 28, but the main Russian forces, especially on the Shusanbao line in front of Liaoyang, were able to intercept the Second and Fourth Armies. Only the 1st Army on the right wing continued the invasion, and the 12th Division on the extreme right wing crossed the river at the upper reaches of the Taishi River, which flows through Liaoyang to the Liao River, at midnight on August 30, and showed its readiness to attack the rear of the Russian forces. On August 31, the Second Army was ordered to break through the position of Shushanbao, the center of the Russian defensive line, as quickly as possible. It launched an assault on the Sosanbao and occupied it on September 1. Tachibana Shuta, an army infantryman who led the assault and was killed in action, was treated as a military god. In the Battle of Liaoyang, the casualties of the 134,500 Japanese and 224,600 Russian troops were estimated at about 23,500 and 20,000 casualties, respectively.