The Military Command Bureau was an important secret service organization of the Kuomintang, formerly known as the Special Branch of the Revival Society, and the leadership of the Military Command Bureau was commanded by Dai Kasa. Dai Kasa was a native of Zhejiang, who had studied at the Whampoa Military Academy, and because he was trusted by Chiang Kai-shek, he had long been engaged in espionage, secret service, and other work.

China's modern history is full of misery, the land of Shenzhou is coveted by outsiders, there are strong enemies on the outside, and internal divisions into multiple camps that are not compatible with each other, but at the critical juncture of the country, the Chinese people still unite to resist foreign enemies, and the Kuomintang and the Communist Party have cooperated many times, just to drive the Japanese out of China. In the War of Resistance Against Japan, Dai Kasa made a lot of merit, but this meritorious man did not enjoy his old age, and one day in March 1946, Dai Kasa was on a plane accident, and he himself died in an accident. After his death, the Military Command Bureau also changed, first Zheng Jiemin took over dai Kasa's position and became the director of the Military Command Bureau, another Mao Renfeng was appointed as the deputy director, under the suggestions of many parties, Chiang Kai-shek intended to make adjustments to the General Bureau, and in June 1946, the third month after Dai Kasa's death, Chiang Kai-shek announced at the meeting that the Military Command Bureau would be reduced to the Ministry of National Defense Secrecy Bureau, and the focus of work would be shifted, specifically fighting against the mainland's intelligence departments.
In fact, on the surface, the Military Command Bureau has not been completely abolished, but with the shift in the focus of work, in fact, the internal has been changed, privately continue to engage in secret service activities, I don't know how Dai Kasa under huangquan should feel. Subsequently, the Military Command Bureau stated in the newspaper that the bureau had been abolished, informing the public that if they impersonated, they would be severely punished. After the Military Command Bureau was changed to the Secrecy Bureau, he was still the head of the Zheng Jiemin administration. The size of the Secrecy Bureau is actually much smaller than that of the Military Command Bureau; when Dai Kasa was alive, the power and prestige of the Military Command Bureau were very high, but all the units under the Military Command Bureau, the dismissal and appointment of officials were managed by the Military Command Bureau, but Dai Kasa was not there, the situation immediately changed, and the personnel of the unit violated the yin and yang and did not cooperate with the work at all.
Speaking of the Military Command Bureau, many people who understand modern history should know that it made countless contributions in the War of Resistance Against Japan, and that when the two countries were at war, he assassinated many high-ranking Japanese officials and puppet army leaders, such as Wang Jingwei and others. Personally, I think that it is the trend of the times, first of all, from the perspective of the Kuomintang's own situation, it is not optimistic in the first place; when the military unification was established, it was precisely when the war broke out, so the departments established were all in the service of the war, but after the victory of the War of Resistance, some things became secondary, and the military unification was bound to be reorganized. At the end of the war, the power of the military command was very large, there were 300,000 people, all over East Asia, there were more than 100,000 intelligence personnel, and they also controlled a number of institutions and units, but the glory of the military command, naturally some people were dissatisfied, several parties openly expressed dissatisfaction, and the pressure on Dai Kasa was not small.
At the same time, Dai Kasa's power was relatively large, and it was a threat in the eyes of some people, so I personally believed that whether Dai Kasa lived or died, the reorganization had become inevitable, and later Chiang Kai-shek issued the order to reorganize, which also had a lot to do with this, and the military command at that time had developed into a huge secret service organization, with as many as eight or ten internal institutions alone, as well as a design committee, not to mention the following cooperation offices. Because of Dai Kasa's power, he could be said to be indistinguishable in military command, and his speech was more effective than Chiang Kai-shek's. Dai Kasa relied on his personal connections to arrange his subordinates in various work units, but when he died. Zheng Jiemin and Mao Renfeng, who took over his position, did not have so much ability to manage military command well, and Chiang Kai-shek intended to reorganize, simply reducing the number of personnel and changing it to a secrecy bureau.
At the multi-party political consultative meeting, the Democratic Party and other parties demanded that Chiang Kai-shek abolish the military unification; when Dai Kasa was alive, Chiang Kai-shek had a lot of trust in him; as the saying goes, but everyone who wants to mix on the road, where there is no one to offend, Dai Kasa in the course of his work, some tough means, also aroused the dissatisfaction of the kuomintang top level, so these people also suggested that the military unify the army and limit its power, under the action of various reasons, led to the abolition of this unit that was famous during the anti-Japanese war after Dai Kasa's death. Of course, the Secrecy Bureau has also made a lot of "merit" to the KMT; when the two parties confronted each other, the Secrecy Bureau, under the command of Mao Renfeng, executed many people who abandoned the secrets and turned to the light, and at the same time wantonly destroyed the arsenals and power plants; historical experience tells us that those who abandon the people will eventually be abandoned by the people.
In 1950, in order to hinder the development of the mainland, the Secrecy Bureau secretly assassinated communist officials and Soviet technicians who provided technical support to the mainland, and carried out sabotage in the rear of the mainland, which once posed a great threat to New China. To put it bluntly, this problem is just a matter of different positions and interests, first the muzzle of the gun is consistent with the outside world, and then solve the domestic problem, once there is no external trouble, it will begin to compete for interests again, and the same is true at home and abroad in ancient and modern times. However, with the purge of the mainland, the Kuomintang forces gradually disintegrated on the mainland, and until the end of 1954, the number of spies in various units of the Secrecy Bureau had not exceeded 10,000, and they could no longer set off any big waves on the mainland.
In 1955, the Kuomintang government followed the example of the American system and changed the Secret Service bureau into the Intelligence Bureau of the Ministry of National Defense, and since then, this secret service organization that has flourished in the hands of Dai Kasa was once a powerful network known to everyone, and even Chiang Kai-shek was quite jealous, but with the passage of time, it still disappeared into the long river of history, although it was meritorious in the War of Resistance Against Japan, but the military command also committed countless crimes, which is worth remembering and reflecting on by our descendants.