Thirty-two years ago today, on August 14, 1993 (June 27, 1993), Japanese sources confirmed for the first time that the Japanese army had used bacteriological weapons in China. American scholars hold a photo of Shiro Ishii, the notorious head of Japan's "Unit 731". The Asahi Shimbun reported on its front page on August 14, 1993 that in the business logs of Japanese Army officers kept in the library of the Defense Research Institute of the Ministry of Defense, there are records of the secret development of bacteriological weapons by the Japanese Unit 731 in Northeast China and the actual use of bacteriological weapons throughout China. The Asahi Shimbun said that Chinese sources have shown that the 731 unit has conducted bacterial warfare in China. However, this is the first time that Japanese sources have confirmed it. On November 4, 1941, a Type 97 light bomber spread a 36-kilometer flea belt with a plague pandemic over Changde, Hunan Province, according to the logs of the staff officer of the Operations Division at the time. Two weeks later, there was a "report of the results" of the plague pandemic. The logs of September 18, 1940 also recorded that Ningbo, Jinhua, Yushan, Taizhou, Lishui and other places were the targets of bacterial warfare attacks. The logs of October 7 of the same year recorded that "so far, six attacks have been launched," and based on this result, the specific methods of spreading the bacteria after that were discussed. Introduction: Japanese Bacteria Force - "731" From 1935 to 1936, the Japanese military established two secret bacterial forces in Northeast China according to the secret orders of Emperor Hirohito. One of them was the "Kwantung Army Epidemic Prevention and Water Supply Department" chaired by Shiro Ishii, which was later renamed "The 731 Force". The 731 Force is stationed in the southern bungalow area of Harbin City, covering an area of more than 30 square kilometers. It is strictly confidential to the outside world. The construction of the Sifang Building Bacteria Experimental Factory alone will secretly kill more than 3,000 Chinese laborers who participated in the construction. This force has more than 3,000 bacteria experts and scientific and technical personnel, and has its own dedicated air force. It also established 4 detachments in Hailar, Sun Wu, Mudanjiang, and Rinkou. The 731 Force has 8 departments, which are responsible for the division of labor and the production of bacterial weapons. Cultured bacteria are: plague, cholera, gangrene, typhoid, paratyphoid, etc. Not only animals are used in experiments, but also live people are used for experiments. For this purpose, there are secret prisons with a capacity of 300 or 400 people. The unit is also responsible for breeding parasites for spreading bacteria, manufacturing special weapons for spreading bacteria, and has large-scale production equipment. With these equipment, no less than 30,000 trillion microorganisms can be produced in one production cycle, 300 kilograms of plague bacteria can be cultivated every month, and tens of millions of fleas specially used for spreading bacteria can be used. The most cruel thing is to use living people for bacterial experiments. These living people who were subjected to experiments came from Chinese anti-Japanese patriots, innocent people, and people from the Soviet Union, Mongolia, and North Korea. They called these people "logs" and slaughtered them at will. The Japanese army carried out experiments on living people in a variety of names, and the methods were extremely cruel. The most common ones were bacterial liquid injection experiments, bacterial diet experiments, poison gas experiments, frostbite treatment experiments, and flamethrower lethality experiments. The Japanese army not only used a large number of germs to conduct experiments on living people, but also performed vivisection on the subjects when they were sick but not dead. Kiyoshi Kawashima, the former director of bacterial production of the 731st unit, confessed at the Buri military court: "During the five years that the 731st unit was stationed in the bungalow, at least 3,000 people were wiped out due to lethal bacteria through this factory." The Japanese invaders not only produced bacterial weapons on a large scale, but also blatantly violated international law and used bacterial weapons on a large scale in the war of aggression against China, which brought deep disasters to the Chinese people and committed unforgivable crimes. Ruins of Unit 731 of the Japanese invading China