In the early spring of 1949, the situation throughout the country was basically clear, the people in Nanjing were panicked, many officials had packed up their things and were ready to flee for their lives at any time, the troops in various parts of the Nationalist army either fled or were directly absorbed by the People's Liberation Army, and the poor situation of the army made the old Chiang unable to swallow, and he could foresee that his Chiang family dynasty was going to end.
However, Old Jiang still wanted to struggle a little longer, and he gathered his concubine troops to the Yangtze River defense line and prepared to fight the People's Liberation Army to the death, but the irony was that these concubine troops revolted one after another.

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At the beginning of April 1949, Old Jiang was preparing to do a battle of trapped beasts, but he did not expect news from Jiaxing that his most important concubine, the National Army Reserve Cadre Training Corps, had revolted in Jiaxing! Although since the outbreak of the war, there have been successive uprisings, but the reserve cadre training regiment is the ace "Guards" personally selected by Old Chiang. Old Chiang used to firmly believe that even if the territory of the whole country was lost and the soldiers were finished, he also had this unit to support himself, and as a result, he was caught off guard, and this unit that made Old Chiang think that he would never "betray" came to a vigorous uprising.
Old Chiang was furious, and although the front line was tight, he still transferred heavy troops to suppress the uprising bloodily, and the uprising of the cadre training regiment was hit by Old Chiang's madness, so it failed to succeed. However, Lao Jiang, who "successfully" suppressed the uprising, did not end up with much benefit, because he personally strangled his own concubine troops.
Old Jiang did not expect that in the next few weeks, he would hear the "good news" of the uprising of the troops of the Concubines, and the Jiang clans around the Shanghai, Fujian, and even the Nanjing defense line somehow chose to revolt at this critical point in time, and the number of people had reached tens of thousands. Frequent uprisings sent a dose of aphrodisiac to the Chiang family dynasty, and by the time the Battle of the Crossing River really started, Nanjing was already a mess of sand and had no combat effectiveness to speak of.
The elder Chiang Kai-shek fled to Taiwan, and the People's Liberation Army stormed into the presidential palace in Nanjing, and the Nationalist forces that had occupied China for decades were wiped out. Before going to Taiwan, Lao Jiang received another news that two major generals working in his attendant room had revolted, their names were Duan Boyu and Duan Zhongyu, the two were brothers, and they were also people whom Lao Jiang regarded as his confidants. At this time, Old Jiang had no choice but to scold two sentences, and compared with all kinds of bad news, the uprising and surrender of the Duan brothers seemed to be worthless.
<h1 class="pgc-h-arrow-right" > Red Agent</h1>
But Old Jiang soon got another piece of news, why did the Chiang clan troops revolt one after another? It was the Duan brothers behind them who were in contact and planning, and when they heard the news, Old Jiang suddenly dropped his jaw in shock, and then he scolded bitterly: "The two of them destroyed the southeast half of my country!" ”
It sounds very bizarre to rebel against so many armed forces with the strength of two men, but there is no unattainable goal for the revolutionaries of our party. The Duan brothers were born in a military family, their father Duan Yunfeng was once a lieutenant general of the Kuomintang, and once served as a lecturer at the Baoding Military Academy, with many protégés, so the Duan brothers were also considered "famous people" within the National Government, and they could even call old Jiang "uncle" when they climbed up the relationship.
It is precisely because of his superior birth that when he became an adult, his younger brother Duan Zhongyu came to work with Lao Jiang and became an officer serving in the troops of Lao Jiang's family, Duan Zhongyu was a man of integrity, fought effectively, and was also loyal to Lao Jiang, the great president, and was deeply respected by Lao Jiang, and soon became an official and knight. A few years later, Duan Zhongyu recommended his brother Duan Boyu to Lao Jiang's side, and the brothers became Old Jiang's confidants, and for a time they were in the limelight.
Old Jiang was very suspicious and investigated the people around him, but the Duan brothers made him very relieved, Duan Zhongyu has been cultivated by her after graduating from the military academy, Duan Boyu has been crawling outside for several years, through the investigation of the agents around old Jiang, Duan Boyu once served as a military doctor, and also ran docks in Shanghai and other places to do business, and the background is beyond doubt. At this time, Old Jiang felt at ease in his heart and began to appoint these two brothers more confidently.
Old Jiang Wanwan did not expect that Duan Boyu was an underground intelligence officer who had joined the party for many years on our side; since his middle school days, Duan Boyu had been concerned about major state affairs, participated in many student movements, and personally went to Yan'an to study.
Although Duan Boyu was born as a general in the national army, he deeply resented the corrupt National Government, and he saw with his own eyes that these people who ate people disregarded the interests of the country and frantically amassed wealth and traitors to the country, and as a progressive youth, Duan Boyu did not want to go along with it, but hoped to overthrow this decadent government and save the country and the people, even if it was to deviate from his own class and lose his original superior life, even if he lost his life, he did not regret it.
<h1 class = "pgc-h-arrow-right" > bloodless blade</h1>
Therefore, under the arrangement of the organization, Duan Boyu contacted his brother, in fact, Duan Zhongyu worked around Lao Jiang for several years, and he was also very disappointed, his personality was similar to that of his brother, compared to the promotion and wealth, he wanted to save the country and save the people, so the brothers cooperated closely and established a secret underground intelligence station around Lao Jiang.
For many years, the Duan brothers continued to send intelligence to our party until the Liberation War broke out, and seeing the turmoil in the hearts of the people on the side of old Chiang Kai-shek, the Duan brothers waited for the perfect opportunity. Although the national army is huge, but the internal chaos is scattered, as long as some people mediate in it, there must be many people willing to abandon the dark and throw in the light, so that our party can defeat the enemy without bloodshed.
The Duan brothers' plan was to dismantle the concubine troops that Lao Chiang valued before the Battle of the Crossing River, and over the years they had accumulated a huge network of interpersonal relations, and many of the generals of the old Chiang Kai-shek were called brothers and brothers, and now these generals were weak in will, and the Duan brothers acted separately, relying on various contact methods to persuade these generals to turn back to the shore, and elaborated on our party's preferential treatment policy.
Because the Duan brothers were Old Chiang's confidants, many of their letters of persuasion were sent in the name of Old Chiang, and it was precisely because of this that so many spies in Nanjing City were not even noticed in advance, until the defeat was decided, and Old Jiang suddenly realized.
According to statistics, in the less than half a year before the Battle of the Crossing River began, the Duan brothers contacted a total of about 100,000 Nationalist troops throughout the country, most of these troops agreed to the uprising, and although a small number did not respond, they did not resist when the People's Liberation Army invaded Nanjing.
On October 1, 1949, Duan Boyu and Duan Zhongyu, who were revolutionary heroes, came to Beijing and saw the five-star red flag rising into the sky, and they personally dispelled the haze and ushered in a new era.