During the War of Resistance Against Japanese Aggression, in addition to attacking China by land, the Japanese army often used aircraft to carry out indiscriminate bombing, and several major cities at that time, such as Chongqing, Shanghai and Wuhan, have been shrouded in the shadow of air raids.
During this period, a famous general of the Nationalist Army planned the most uplifting military operation during the entire War of Resistance, first of all, the person in charge of the operation, this person was called Qian Dajun, one of the eight king kongs of the Nationalist Army, he realized the importance of revolution at a young age, so he participated in the anti-Qing and anti-Yuan revolutionary movements.

Later, Dr. Sun Yat-sen established the Whampoa Military Academy, and Qian Dajun was invited to become the chief instructor of Whampoa, although this person's life style was very controversial, but he still made a lot of merit in the War of Resistance.
As early as the very beginning of the War of Resistance Against Japanese Aggression, he did a big thing, when the Nationalist army was gradually defeated and retreated, and the Japanese army occupied a lot of China's national territory, and at this time, the Forbidden City still preserved a lot of precious cultural relics, if the Japanese army saw it, I am afraid that I would not leave a single one. Fortunately, Qian Dajun let his subordinates escort these cultural relics to Chongqing day and night, and finally found that there were more than 7,000 pieces in this batch after counting.
In 1938, the Japanese army began to bomb Chongqing with impunity, and the Nationalist army also decided to send people to the Japanese mainland to bomb, and Qian Dajun took over this heavy responsibility.
Because this operation is far away and is fighting in other countries, the risk is extremely high, so Qian Dajun repeatedly stressed to the carefully selected 8 warriors that this operation is voluntary, as long as they do not want to go directly to quit, but none of the 8 warriors shook their heads.
Of course, if 8 people went to bomb Japan with ordinary bombs, it was basically meaningless, and if the Plane of the Chinese Army at that time carried a bomb, the amount of oil must not be enough to return, so the 8 warriors at that time carried special paper bombs, which were all leaflets, and the purpose of this bombing was to reveal the true face of the Japanese government to the Japanese people.