When the Japanese army infiltrated the French Concession, Du Yuesheng angrily said: You are coming, within two hours, I will destroy all the concessions!

Since the day the Western powers opened the door to China with cannons, Shanghai, a small county that was originally inconspicuous in the territory of the Qing government, has prospered almost with the decline of the Qing Dynasty. By the eve of the outbreak of the War of Resistance Against Japanese Aggression, Shanghai was lined with ground concessions and had become an international metropolis known as the Far East. Here, countries have their own opinions, the same city implements the legal system of different countries, the law can not help but be full of loopholes, so Shanghai has become a paradise for gangsters for a time. After the outbreak of the War of Resistance Against Japanese Aggression, it was also due to the existence of the concession that the gangsters in Shanghai still had room for survival. But it was this seemingly inconspicuous force that played a huge role in the later spy battlefield.

At that time, there were three most powerful people in the Shanghai gang: Jin Jinrong, Du Yuesheng, and Zhang Xiaolin. Zhang Xiaolin defected to the Japanese after the outbreak of the War of Resistance against Japanese Aggression and became the president of the Maintenance Association. In 1940, he was assassinated by military agents. Jin Rong stayed in Shanghai, and the Japanese repeatedly asked him to serve in an important position in the Shanghai Municipal Government, trying to use his influence and his disciples to maintain law and order in Shanghai and hunt down anti-Japanese soldiers, but Jin Rong tried to refuse. Jin Rong's thoughts were: "I don't want to offend the Japanese, but I also don't want to be a traitor." "Although Jin Rong is a gang leader, he still has a clear understanding of this point. It was precisely because of Zhang Xiaolin's defection to the enemy and Jin Rong's neutrality that almost all the gangs in Shanghai during the War of Resistance Against Japanese Aggression were in the hands of Du Yuesheng. Although Du Yuesheng took refuge in Hong Kong after the fall of Shanghai, he still took advantage of the gang's connections to remotely control the command and made a certain contribution to the War of Resistance.

As early as the 1932 January 28 Incident, thousands of Japanese soldiers infiltrated the French Concession in Shanghai in disguise and attacked the Chinese positions, posing a great threat to the Nineteenth Route Army, and the Chinese diplomatic authorities repeatedly lodged strong protests with the British and American ministers.

On February 22 and 23, the Nationalist army could not bear the Japanese army's use of the concession as a shelter, so they opened fire to attack the Japanese troops who had fled into the concession, and the British, American, and other consulates sent a note to the Chinese side to protest.

Du Yuesheng learned that thousands of Japanese troops would take advantage of the night to land and sneak into the shops and houses opened by Japanese overseas Chinese in the French Concession in an attempt to rush into Western Huxi from the French Concession, sneak into Jiangwan and Miaohang, and invade the right wing of the Chinese army. Du Yuesheng immediately informed Wu Tiecheng and Cai Tingkai to strengthen the defense of Jiangwan and the rear of the temple, and Wu Tiecheng urgently submitted 100,000 to the Ministry of Foreign Affairs.

On February 28, Du Yuesheng also participated in the negotiations with Japanese, French, British, and German representatives, as the head of the Chinese circles in the French Concession.

In the face of the Japanese deputy Murai Kuramatsu, Du Yuesheng shot up the case: "Well, the Toyo soldiers can enter the concession, live in the concession, and use the concession to fight Chinese, although you pass this bill, I Du Yuesheng wants to say a word, as long as the bill is passed, I ask the Japanese army to open up as much as possible, and foreign friends do not leave, I Du Yuesheng will destroy the concession within two hours!" We all die here together! ”

After speaking, he strode out of the venue, and the whole audience was stunned. Everyone present knew Du Yuesheng's energy in Shanghai. Finally, in desperation, thousands of Japanese troops who had infiltrated the French Concession quietly withdrew at night.

In August 1937, the Japanese invaded Shanghai Beach. At this time, Du Yuesheng and Dai Kasa discussed the establishment of an armed guerrilla force of 10,000 people to cooperate with the regular army's battles, and to take on the task of "eliminating espionage and counter-intelligence". Dai Kasa clearly realized that with Du Yuesheng's social influence, he could completely pull up a team of 10,000 people, but at that time, the government's finances were tight, and the front-line war was full of money, and the government had no extra money to equip this team. Dai Kasa told Du Yuesheng of his concerns, but he didn't expect Du to laugh after hearing it: "People are patriotic, who is inferior to me." Fortunately, in addition to patriotism, I also have some money. He then paid for 5,000 pistols and 5,000 rifles, and mobilized people from all walks of life to enlist. In October, the 10,000-strong armed guerrilla force was put into actual combat, cooperating with the regular army on both sides of the Shanghai South City and the Suzhou Creek to fight the Japanese army, although the combat effectiveness was poor, most of the members were extremely brave and tenacious, and made sacrifices for the War of Resistance. According to post-mortem statistics, more than 1,500 people were killed and more than 500 wounded by this armed guerrilla group. Du Yuesheng was grief-stricken when he heard the news, and said to his subordinates that he was not heartbroken by his own money, but heartache that so many hot-blooded young people had sacrificed their lives on the battlefield. Many of those who died in battle were Du Yuesheng's disciples. This battle can be called the "first blood" of the Shanghai gang for the war of resistance.

After that, Du Yuesheng also staged a scene of "gangster hoeing" on the shanghai beach one after another.

Zhang Xiaolin was killed in 1940, although the perpetrator was a military command agent, but in the planning of the whole incident, the Shanghai gang played an important role.

Among the traitors that the Shanghai gangs helped eradicate, the highest-ranking one was Fu Xiao'an, the pseudo-mayor of Shanghai. Fu Xiao'an, who had become a traitor to the Han Dynasty, was also in a state of panic himself, and when he moved to Shanghai, he specially asked the Japanese military department to find a garden house for him in the Hongkou circle as an official residence. He has 23 bodyguards at his side, all of whom are his confidants. To be on the safe side, he also found a close associate who had been with him for decades to take care of the diet. But it was this crony who took his life with a kitchen knife while he was asleep. This close confidant, zhu Shengyuan, had been working in the Fu family for decades, and as early as when Fu Xiao'an's father was still alive, Zhu Shengyuan was already a close confidant of the Fu family. Choosing a "two generations of righteous servants" to take care of your own diet should be able to sit back and relax. However, Fu Xiao'an did not expect that Zhu Shengyuan had joined the "Qing Gang" as early as a young age, and after the outbreak of the War of Resistance Against Japanese Aggression, he accepted the leadership of the military command through the "Qing Gang". This time, Fu Xiao'an was appointed as the puppet mayor of Shanghai, and the military commander ordered fu Xiao'an to be removed to make an example, and poor Fu Xiao'an was still sleeping.

On February 19, 1939, Chen Zhen, the minister of foreign affairs of the puppet restoration government, had planned to spend the Spring Festival in Shanghai, but when he arrived home, he was shot and killed by several armed men.

For this period of history of the Shanghai gangster resistance, some people still have doubts today, believing that the gangster activities have a strong horror color, which makes the Shanghai citizens panic and also brings psychological trauma to the Shanghai citizens in the occupied areas. However, it is undeniable that the assassinations, explosions, and other activities adopted by the Shanghai gangs after the outbreak of the War of Resistance Against Japanese Aggression have indeed effectively prevented some people from defecting to the enemy and betraying the country, and have also given the necessary punishment to the traitors.