This has to start from the beginning, starting with the Battle of Guinan. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 infoThe Battle of Guinan was after the fall of Guangzhou, when the Chinese defenders resisted the Japanese army in order to strike at China's international relations

The operation carried out in Nanning, Guangxi, and other areas by threatening the rear of the southwest was carried out.

In November 1939, Toshiyoshi Ando, commander of the 21st Army of the Japanese Invading Army, opened up a naval aviation base for the Yunnan-Burma Highway in order to cut off the international communication line between Guangxi, China and Vietnam.

The Yunnan-Vietnam Railway is a railway from Kunming to Hanoi. The Vietnamese section of the railway was built by the French, and the Chinese section was only after French pressure that the Qing government of China agreed to build the railway.

Today, the Yunnan-Burma Highway and the Yunnan-Vietnam Railway have become the veins for transporting supplies to the southern battlefield. During the peak period, tens of thousands of tons of munitions, fuel and other materials were transported to Yunnan by rail through Haiphong in Vietnam every month. In the past, Japan pressed the British, and the Yunnan-Burma highway was blocked, after which, the Japanese army began to study the closure of this railway.

In November 1939, in order to cut off the international communication line between Guangxi, China and Vietnam, and to open up a naval aviation base for the Yunnan-Vietnam Railway and the Yunnan-Burma Highway, the commander of the 21st Army of the Japanese Army, Toshiyoshi Ando, secretly assembled the 5th Division, the Taiwan Mixed Brigade, and the 5th Fleet at Yulin Port at the southern tip of Hainan Island, waiting for dispatch.

In the early morning of November 15, the Japanese army blitzed Qinzhou Bay in the wind and rain and trapped the city. On the 24th, it occupied Longzhou, Nanning. The Nationalist Government transferred the 5th, 99th, and 36th armies to Guangxi. Army commander Du Yuming counterattacked Kunlun Pass, defeated the 21st Brigade, killed the brigade commander Nakamura Masao, and won a great victory at Kunlun Pass.

In January 1940, the Japanese army transferred the 18th Division and the Guards Mixed Brigade to carry out a counterattack, and on February 3, it occupied Kunlun Pass again. The Chinese army fought hard for many days, suffered heavy casualties, and needed to rest and recuperate, so the battle ended. Lao Chiang purged a large number of officers.

On June 22, 1940, France and Germany signed an armistice, and the Vichy government was established. The Vichy government accepted the French overseas colonies, and Indochina was one of them, including Vietnam, Laos, Cambodia, etc.

At that time, the Yunnan-Vietnam Railway was the only material route. The supplies were brought ashore from Haiphong, Vietnam, and transported by rail into Yunnan. After repeated bombing, the Japanese still could not disrupt the transports. Therefore, Japan, relying on diplomatic efforts, put pressure on the Vichy government to close the railway.

In July 1940, the Japanese army captured Longzhou.

On September 5, the South Zhina Front was organized into the Indochina Dispatch Army, with the commander of the Dispatch Army, Nishimura Takuma, and its backup was the naval fleet, aircraft carriers, and land-based aircraft from Hainan. The task of the Indochina Dispatch Army was Indochina, and the first step of its mission was Vietnam.

Under strong military pressure, on September 22, Japan signed an agreement with the Indochina government of the Vichy government to station 6,000 Japanese troops in Indochina, with a maximum of 25,000 troops, and prohibiting the Japanese army from attacking from Indochina without the permission of the other side.

A few hours after the agreement was signed, the Japanese attacked. The 5th Division attacked Vietnam under the command of Lieutenant General Akito Nakamura. The French protested, but the Japanese ignored it. On the night of September 26, the Japanese army occupied the Vietnamese side of the Sino-Vietnamese border, garrisoning hundreds of troops, and the railway was interrupted.

It is worth mentioning that on September 27, Germany, Italy and Japan signed a military alliance. On the same day, Vietnam was occupied, and the French regime, which was under German control, recognized the Japanese occupation.

Japan abbreviates France as Buddha, French Indochina, and the Japanese call it Buddha Indochina. Therefore, the occupation of French Indochina, the Japanese called it "Buddha Yin stationing". The entry of the Buddha was an occupation of the long Indochina, and for Vietnam, they called it the Vietnam Expedition.

The occupation of Vietnam was not only the first step in Japan's Indochina strategy, but also an important step in Japan's solution to the food problem. At present, among the overseas colonies of the Japanese, Japan, Manchuria and Taiwan are the main suppliers of grain. Because a large number of Japanese peasants joined the army, local grain production dropped greatly, and there was not enough grain in these places. Vietnam, which produces rice, is an important grain producing area.

Because of the large-scale destruction of the small roads in Tohoku and Korea, the grain exported from the two places dropped sharply, and Japan had to deal with Vietnam for the sake of food.

Later, Japan shipped one million tons of rice from Vietnam every year. In the year of the disaster, millions of Vietnamese starved to death.

In addition, from September, on the battlefield in South China, history has reluctantly left its trajectory.

Originally, in history, the main forces of the Japanese 21st Army entered Vietnam one after another, and by October, the 16th and 35th armies of the Fourth Theater (a total of 6 divisions) took advantage of the situation to launch a counteroffensive and successively recovered Longzhou, Nanning, and Qin County. On November 30, Zhennanguan (now Youyi Pass) was recovered, and all Japanese troops were expelled from Guangxi, and the battle ended.

Because the Eighth Route Army did not conduct the Battle of the Hundred Regiments in North China in August, the Japanese army gathered more troops in Vietnam, and some East China troops also took warships to Vietnam.

At present, Chongqing's theater in Guangxi is the fourth theater, and the six divisions of its 16th and 35th armies do not know that they are facing greater pressure, but the upper echelons are ready to move and seek a way out for themselves.

The situation in Vietnam deteriorated, and the news reached Kunming. The news spread quickly like a plague, and the whole Kunming was in a panic, and many people began to move, some to Guizhou, some to Chengdu, Xikang. Some even want to go to cities further afield, such as Hanzhong. Not only Kunming, but also other Yunnan cities where refugees are gathered are panicking and ready to move.

Similarly, news of the deterioration of the situation in Vietnam quickly reached Chongqing. Chongqing is also in a panic. Vietnam was in danger, Guangxi was unstable, and the Japanese encirclement of the Great Southwest began to form. Some were preparing to flee abroad, while others were preparing to flee to Xikang.

The government of the Republic of China is like a big tree, dozens or hundreds of its roots are gradually being cut off by the Japanese, and now the only few roots in the southwest are about to be broken.

Beginning in February 1938, the Japanese army began a large-scale bombing of Chongqing, and after the fall of Wuhan in October 38, Japanese planes took off from various airports in Wuhan and Hubei, and the scale of Chongqing's bombing began to become stronger. On August 19, 1940, the bombing was particularly severe.

After the two lines of communication in the southwest were cut off, the supply of troops was immediately restricted. Originally, the materials procured from Europe and the United States first went to Vietnam or Hong Kong by sea, and then entered the mainland. Today, the sea has been occupied by the Japanese army, and the Vietnamese passage has been completely cut off. The small number of supplies from Hong Kong is obviously not enough.

Chongqing's pacifist faction, that is, the capitulation faction, became more active than ever.

The activities of the peace faction were frequent, and the news immediately spread to Yan'an, and Yan'an realized that it was necessary to fight a war. Fight a winning battle. Cheer up the people, warn the capitulation faction, and give a warning to the Chongqing government.

If Chongqing had surrendered now, the millions of people who had died in those three years would have died in vain. If Chongqing surrenders now, then the situation of the War of Resistance will be even more difficult in the future. A large number of national troops have turned into puppet armies, and the situation of the New Fourth Army and the Eighth Route Army will be extremely difficult, and the consequences will be unimaginable.