In the early summer of 1943, on the Hubei front of the Sino-Japanese War, a Japanese soldier who had just fallen to the ground and was about to die in the grass was rushed over by a fellow soldier and held in his arms. The fallen Japanese soldier was in a desperate and critical condition.

　　In the early summer of 1943, on the Hubei front of the Second Sino-Japanese War, a Japanese soldier who had fallen to the grassy plain and was about to die was rushed over by a fellow soldier and held up in his arms. The fallen Japanese soldier was in a desperate condition. The sound of a sharp bullet whizzing past his ear caused the Japanese soldiers of the Tsuchiya Unit to immediately respond to the Chinese army.

　　The Hubei Front was a battle between the Japanese and Chinese armies in western Hubei Prefecture that took place between late April and early June 1943 during the Second Sino-Japanese War. It was also known as the Jiangnan Annihilation Campaign, and the Chinese name for it was the Exi Campaign. The Japanese Navy's name for the campaign that was being carried out at the same time was Operation G. The Japanese 11th Army invaded the area along the southern bank of the Yangtze River west of Lake Dongting, with the aim of destroying the Chinese forces there. The Japanese 11th Army, which invaded China, launched the Jiangnan Annihilation Strategy to strengthen the transport capacity of the Yangtze River and destroy the Chinese Nationalist Army's field forces.

　　　During the process of the Jiangnan Annihilation Strategy, the Changyao Massacre occurred between May 9th and May 13th 1943, in which Japanese soldiers massacred around 30,000 residents of Changyao in Hunan Province and Chinese soldiers. The Japanese army suffered 771 casualties and 2,746 wounded, of which 157 casualties and 238 wounded were due to air raids. The Japanese military's summary of the results of the battle was that there were 30,766 Chinese corpses left behind and 4,279 prisoners of war. The Chinese side claimed that this was the second largest massacre in the Sino-Japanese War, after the Nanking Massacre, and the largest in the Pacific War.