During the Battle of Liaoyang in the Russo-Japanese War, Japanese troops attacked the Shushan Redoubt from August 30, 1904, and Beidaisan from the middle of the night on August 31, and were destroyed in a fierce battle. On the following day, September 1, at 1:00 p.m., the huge number of dead bodies of Japanese soldiers who were killed and scattered in the battlefield were disposed of. On August 30, the Japanese attacked the Russian positions east of Shushanbao. On August 30, the Japanese attacked the Russian positions to the east of Shushanbao, but due to the severe shortage of men, horses, materials, and ammunition, they could not sufficiently attack the strong enemy positions, and the tragic casualties of the assault troops increased. Japanese units that ran out of ammunition were unable to eliminate the Russian assault, and many Japanese soldiers were killed or wounded. The Japanese troops attacking at night were discovered by moonlight and came under fierce attack by the Russians.
On August 28, the Japanese forces launched an all-out attack at the Battle of Liaoyang, and the first major battle of the Russo-Japanese War broke out between about 130,000 Japanese and 220,000 Russian troops. On September 1, the Russian forces from Shushanbao to Beidashan retreated from their positions and occupied the unoccupied Shushanbao. From September 1, the Russians counterattacked the Japanese troops that had crossed the Taishi River, but on September 3, the Russians gave up and retreated altogether. The Battle of Liaoyang ended with the Japanese army entering the city of Liaoyang. The casualties were 23,533 on the Japanese side and over 20,000 on the Russian side, totaling over 40,000 on both sides.
On September 29, 1904, in order to replenish the military forces, the Conscription Ordinance was amended to allow for temporary call-ups until the time of war, if necessary due to an incident. The age of military service was extended from 18-32 years old to 18-37 years old. In March 1927, the Military Service Law was promulgated in place of the Conscription Order, and came into effect on December 1 of the same year. In March 1927, the Military Service Law was promulgated, replacing the Conscription Order, and went into effect on December 1, 1927. At the same time as the Military Service Law, the Army Muster Regulations and the Navy Muster Regulations were also promulgated, and the law was revised from conscription to muster. A call-up warrant is a warrant issued to an individual by the military to summon a person from the hometown as a soldier.
