Under the influence of World War I , some imperialist countries, especially Japan, Italy, and German fascism, launched new wars in order to dominate the world, and mastered the "secret of quick victory in wars" and prepared for chemical warfare from all aspects.
1. Preparation for the Japanese military's chemical warfare
In order to dominate Asia, Japan launched a new war, mastered the "secret decision" to win quickly, and was determined to develop and master chemical weapons as soon as possible.
11918, the Army Province established a temporary gas committee in its Weapons Bureau and hired 22 members to study issues such as drug production, use and chemical warfare training. In April 1919, the Japanese Army established the Army Technology Headquarters, which was under the Army Science Institute, and the second department of the institute was responsible for chemical warfare research.
1924, Nakasa, a army planted a tree in Kurumura, went to Europe to inspect the specific situation of the use of chemical weapons in the European war, and returned to China. In his report to the head of the army, he emphasized: "One of the secrets to winning in future wars is a scientific surprise attack...making poison gas is an emergency task." Since then, Japan accelerated the development and development of chemical weapons. In 1925, the second department of the Army Institute of Science was upgraded to the third department, with more than 100 personnel, and three poisons, including diphenylethylene glycone, French mustard gas , and phosgene , and the first field test was conducted that year.