Except for the military and police everywhere in the streets and alleys, people and cars coming and going on, the Beijing-Baotong Railway trains were whistling and passing through the border smoothly, and there was no obvious difference from the past.

At the end of May 1933, the banner of anti-Japanese was flying in Zhangjiakou . The Chahar People's Anti-Japanese Allied Forces were established, and heroes from all walks of life gathered. In addition to the military and police everywhere in the streets and alleys, people and cars coming and going in the market, the trains on the Beijing-Baotong Railway are whistling and passing through the border smoothly, and there is no obvious difference between them and the past.

However, under the calm and enthusiastic surface, there are turbulent changes in the wind and clouds.

All forces gather, and one force is a mess, and the internal situation of the Allied forces is complicated.

Outside, the city was overwhelmed by dark clouds, the economy was blocked, the newspapers were accusing them, and the encircled army was coming from all sides. There was also a group of Blue Clothing Club spies who infiltrated this remote city everywhere. In addition to obtaining political and military intelligence, these people are also divisive and agitating mutinies. Zhu Lianxiang, who once participated in the anti-Japanese war with Xuan Xiafa, recalled: "A company of the Gu Shuliang regiment in Zhang Renjie is stationed at Guo Leizhuang Station. One night, the company commander was hacked to death. The whole company mutiny and fled towards Peiping . In three months, similar incidents occurred four or five times."

The situation was dangerous, and it was all up to Feng Yuxiang General Feng Yuxiang trekking and barely supported.

It is in this context that four extraordinary events occurred in Zhangjiakou.

One month before the establishment of the Allied Army, on April 23, the military officer Wei Zongjin ( Song Zheyuan sent to help Feng), who was relied on, was killed, and the murderer was arrested. In this matter, Feng publicized that the murderer was bribed by the Kuomintang spies and conspired to cut off Feng and Song's connection. The truth is, according to Liu Juanxun, "Feng Yuxiang's confidential followers (secret member of the Communist Party of China) Wang Huafeng and Wang Dayong acted without authorization and forced the Feng former Director of the Military Control Commission Wei Zongjin to provide funds for the activity, and the contradictions intensified and killed Wei Zongjin." The case caused trouble within Feng, which made Feng Yuxiang dilemma and made him in a dilemma. However, after verified, the matter has nothing to do with the CCP organization and is purely due to the personal behavior of Wang Huafeng and the other two. Out of the need for cooperation with the Communist Party, Feng took lenient treatment to the Communist Party members and claimed in external publicity that Wei Zongjin was assassinated by the Kuomintang spy.

The second thing is that on June 27, the representative of Liu Guitang , Shangwu's pistol went fire and died. After Shangwu arrived in Zhangjiakou, he lived in Shangbao Russian Dinner. A group of people came to visit Shang. Shang was playing with his little pistol. When he put the gun back into his pocket, he unfortunately got angry and died on the spot. There are many witnesses in this incident, including Shi Guanying, Xu Weilie, and Ruan Xuanwu . But the matter was exploited by Chairman Jiang, and it was widely publicized that Feng killed him, provoking the relationship between the anti-Japanese Allied Army and other miscellaneous teams such as Liu Guitang.

The third thing is the death of Gu Songnian. Gu Songnian was the chief of staff of Li Zhongyi ( Li Haiqing ) of the Anti-Japanese Volunteer Army. Li Zhongyi suspected that he incited the rebellion, so he shot him and killed him on July 30 and reported the matter to Feng Yuxiang on August 7. At that time, the Allied forces all called Gu Songnian a spy on the Kuomintang. But this incident aroused the opposition of Li Zhongyi's entire army.

Gu Songnian has played a great role in the development of this armed forces since he became the chief of staff of Li Haiqing's anti-Japanese troops. He has close ties with progressive officers from various departments, and is actually the core of the unity of Li Zhongyi's volunteer army. In order to prevent this army from falling into the hands of the Communist Party of China, Li Yihu, a member of the Fuxing Society, and Li Haiqing's nephew, was sent to Li's army. After planning by Li Yihu and the spy. The case of Gu Songnian's conspiracy to assassinate Li Haiqing was fabricated, prompting Li Haiqing to shoot Gu Songnian. Li Zhongyi knew very well that he had been attracted by He Yingqin. Soon after Gu Songnian was shot, Li Zhongyi led his team to surrender to He Yingqin.

Liu Qingting and Liu Jingyu, the two division commanders of Li's army, jointly issued a telegram to Feng Yuxiang after the shooting case, and revealed that Li Haiqing had killed anti-Japanese generals without permission, and executed Li Yihu, who was sent by Li Haiqing as the chief of the division's staff, and announced his separation from Li Haiqing's 16th Army. Feng Yuxiang organized the two divisions into the 15th Army. This shows that Feng Yuxiang also knew that Gu Songnian was not a spy on the Kuomintang, and that his power to the outside world was just to maintain the superficial unity of the Allied forces.

The fourth thing is Deng Wen 's death. Deng was appointed by Feng as the commander-in-chief of the Fifth Route Army and the left deputy commander-in-chief of the front enemy. He made great efforts in the battle to recapture Duolen and made great achievements.According to Shi Guanying's recollection, the Deng people were honest and honest, but they were very good at visiting prostitutes. If there was a little time to go to military affairs, they would look for flowers and willows. One night (July 31), Deng was staying in a prostitute in a New World Gabbing Clothing. Suddenly, several people broke in with big swords and killed Deng on the bed of the mandarin duck.

This incident became a big news in Zhangjiakou at that time. Because of its prosperity, although the incident was not announced, the news spread wildly. There are many rumors on the market. Because Deng was an anti-Japanese hero, many people said it was done by the Blue-Yi Society spy; some people said it was a complaint by Deng's subordinates, saying why Deng should be bribed, and wanted to be an internal response to endanger the Allied Army and Feng Yuxiang, so they secretly executed Feng. The powerful people who hold this view come from Feng's secretary Song Yuxiu's memory. But it is difficult to determine what the reality is. Even the so-called empirical evidence mentioned by researchers is basically limited to speculation and analysis.

But Deng Wen's death caused an uproar within the Allied Forces. Some newly surrendered generals were originally weak in their will, and were deeply shocked by this matter. The number of concerns increased, and they gradually became strange plans. Chairman Jiang sowed the disagreement and threats and inducements increased favorable factors. At this point, the Allied forces had a serious crisis and almost fell apart.

The vigorous Chahar anti-Japanese war, with the departure of this iconic figure, people scattered in an instant. This anti-Japanese boat was made up of materials and used different forces when setting off. It was not easy to wading through two or three reefs. When facing the shocking waves, the boat was in danger of being destroyed. He had to strand and go his separate ways, leaving his dilapidated hull alone to withstand the wind and rain.

Only Fang Zhenwu and Ji Hongchang were still holding high the banner of anti-Japanese war and persevering until mid-October, with ammunition and food exhausted and ending, and finally declared the final failure.