The Yan'an side soon received a note from the Nationalist Government that it hoped that the two parties would hold a high-level meeting in the near future, and that the venue could be set by the Communist Party, but the time must be less than a week.

The vast majority of people thought that Chiang Kai-shek was taking advantage of the fire to rob him, and there were even many people who thought that the Party Central Committee should refuse to negotiate with the Kuomintang, because at this time the Communist Party was very passive, and it was okay to hold peace talks, and the Nationalist Government had to hold back the main force of the Japanese army in the south, otherwise the two sides would have nothing to talk about now.

However, after reading it, Chairman Mao confirmed that the matter of the Nationalist Government is indeed very sincere, and it seems that he is preparing to negotiate with our party on the distribution of interests, after all, Han Yunhua's troops are moving too quickly in North China, and in the current situation, the collapse of Tada Jun's North China Front Army is inevitable, and after the North China Front Army is eliminated, it will leave a large piece of territory, and if the Nationalist Government is willing to be occupied by the Eighth Route Army in this way, it will be called a ghost. And now, although the war in North China has achieved a certain victory, there is still a considerable distance from complete victory, so the anti-Japanese national united front must still be maintained, so Chairman Mao decided to hold talks between the two sides in Yan'an, and the time was determined by the Nationalist Government.

After receiving Yan'an's reply, the Nationalist Government immediately sent a delegation headed by He Yingqin to Yan'an by plane. After learning that the Nationalist Government had sent Minister of Military Affairs He Yingqin out, Chairman Mao immediately asked Vice Chairman Zhou and Commander-in-Chief Zhu to form their own negotiation delegation.

At 10:40 on December 7, 1940, He Yingqin and his entourage arrived in Yan'an by special plane, and Chairman Mao and Vice Chairman Zhou went to the airport to greet the delegation of the Nationalist Government.

He Yingqin knew that the situation was urgent, and his attitude, or the attitude of the Communist Party, directly determined whether the more than 1 million Kuomintang troops on the Wuhan front would fight or withdraw, so He Yingqin asked the Communist Party to immediately enter a state of talks.

The chairman and others were also well aware of the situation facing the two sides, and the attitude of the Nationalist Government was directly related to whether the more than 60,000 troops of the 11th Army of the Japanese Army would go north or continue to stay in Jiangnan, so the chairman and others were also very anxious, so they quickly agreed to the request of the delegation of the Nationalist Government, and the two sides immediately held the first round of talks after lunch.

Han Yunhua was overjoyed when he learned the news that the Nationalist Government was going to hold talks with the Communist Eighth Route Army, and he knew very well what this meant; if it had been separated by the attitude of the previous Nationalist Government, he would never have held talks with the Communist Party, and now since Chiang Kai-shek took the initiative to send his right-hand man He Yingqin to negotiate with the Party Central Committee, it can only show that the current strength of the Communist Party has been recognized by Chiang Kai-shek, and the Nationalist Government does not dare to make a complete break with the Communist Party. This is undoubtedly good for the country and the nation, at least the southern Anhui incident that is about to occur in history should not happen again, after all, even He Yingqin is still in Yan'an, and Chiang Kai-shek will not ignore He Yingqin's life and death.

Han Yunhua himself had a game of chess in his heart, he only talked about a small part of it with the chairman before, and Han Yunhua didn't say the rest, and now since the great Chairman Jiang took the initiative to send it to the door, then Han Yunhua is not polite. In the name of the commander of the Inner Mongolia Military Region and secretary of the Northern Bureau, he sent a telegram to the party Central Committee, suggesting that the party Central Committee should not care about the immediate interests, that the overall situation should be the most important thing, that certain concessions could be made between the territories, and that it could even cede all the territory of Hebei except for eastern Hebei to the Nationalist Government, including the Beijing-Tianjin region, but it absolutely could not cede the area north of Zhangjiakou to the Nationalist Government.

In addition, the Party Central Committee can try to negotiate with Yan Xishan, and exchange Shanxi's territory for its control in the Guisui region, although the Jin Suijun is claimed to be the Jin Suijun, but as long as a discerning person knows that Yan Xishan still cares about the interests of the Shanxi region, and its ruling center is still in Shanxi. Now the Inner Mongolia Military Region has occupied almost half of the northern part of Shanxi, and even the important town of Datong is under the control of Han Yunhua's subordinates, so as long as Han Yunhua's subordinates are willing, Yan Xishan will definitely exchange the control of Guisui for the complete ruling power of Shanxi. …,

After the telegram was sent, Han Yunhua did not pay any attention to the negotiations between the Kuomintang and the Communist Party, and this was the time when it was appropriate to chase after the poor and the poor, and if the success fell short at this time, then the so-called Kuomintang-Communist talks would soon end without a problem.

Soon Han Yunhua ordered the headquarters to move forward, and on December 9 in Luoshuihe Town, Lingqiu County, he met with Nie Rongzhen, commander of the Shanxi-Chahar-Hebei Military Region, and the two military regions held talks on the next battle, and the result of the talks was that from now on, the Inner Mongolia Military Region would only be responsible for moving forward, and all the territory laid down in the rear would be defended and digested by the Shanxi-Chahar-Hebei Military Region, and the captured spoils would be divided into six or four points by the two military regions, with the Inner Mongolia Military Region having six floors and the Shanxi-Chahar-Hebei Military Region having four floors.

On the same day, Han Yunhua issued an order to the Inner Mongolia Military Region to increase troops, and in addition to the necessary defensive forces, the remaining troops of the entire military region immediately moved south and assembled in Datong. In addition, the 8th Field Division immediately moved east to eastern Hebei and joined up with the 77th Independent Division to jointly defend eastern Hebei to prevent the Japanese Kwantung Army from moving south.

At the same time, Han Yunhua ordered the 4th Field Division on the front line to immediately move south to attack Jingcheng Pass, while the troops in southern Hebei coordinated with the movement towards the Shimen area and dragged the 26th Division stationed in the Shimen area. Han Yunhua believed that as long as Jingcheng Pass was attacked, then General Tian Jun would definitely not be able to sit still.

Although the Japanese Fifth Division and the 38th Division are also considered to be strong, these two divisions have been severely damaged in the previous period of fighting, although many veterans have been replenished later, but the combat effectiveness has not yet returned to the peak state, and the most important thing is that these two divisions lost heavy equipment some time ago and have not yet been replenished, so they are not much stronger than the troops of the Inner Mongolia Military Region in terms of weapons and equipment. What made Lieutenant General Toshiyoshi Ando feel most depressed was that the number of Chinese troops absolutely exceeded the expectations of all the top echelons of the imperial army, only outside Zhangjiakou they found the number of about eight Chinese infantry divisions, and about two artillery clusters and anti-aircraft machine gun wings, such a powerful firepower even the imperial army cluster did not dare to get too close to the battlefield, hundreds of heavy machine guns and anti-aircraft machine guns fired at the same time, even if more planes came to end up with hatred.

What the Japanese troops stationed in Zhangjiakou did not expect was that even after they reoccupied Zhangjiakou, they immediately repaired the seriously damaged city fortifications and re-dug Zhangjiakou into a military fortress, with the support of a large number of reinforced concrete, the rebuilt Zhangjiakou was much stronger than the previous fortifications built by Xu Shiyou's department.

Now the positions of the offensive and defensive sides are changed, the original defensive field division has become the offensive force, while the fifth division and the 38th division have become the defensive troops, the two sides along the line from Zhangbei to Zhangjiakou one by one, the whole month of the battle finally let Xu Shiyou's troops break through all the Japanese defense lines along the line, and the troops are under the city of Zhangjiakou.

In fact, Xu Shiyou, He Guangyu and others knew very well that the reason why the Japanese army behaved so badly was not because of how strong the combat effectiveness of the several divisions under their command was, but because Lieutenant General Ando Toshiyoshi did not intend to compete with them in the field, after all, the Japanese army is limited now, and if it falls into the encirclement of the Chinese army in the field, it will really be hopeless, so Lieutenant General Ando Toshiyoshi adopted the previous method of Han Yunhua's unit to deal with the Japanese army, relying on the favorable terrain to block and injure a large number of the living forces of the Chinese army. This is to govern others in their own way.

And the effect of this tactic is also obvious, although the Japanese army is fighting and retreating along the way, but the casualties of the Japanese army are very small, on the contrary, Xu Shiyou's department lost nearly 20,000 people in just over a month of fighting, of which nearly 6,000 people were killed in direct battle, fortunately, among the 6,000 people killed in the battle, there are less than 2,000 people who really belong to the elite of the Inner Mongolia Military Region, and the rest are new recruits who have just joined the army. But even so, the losses caused by more than 20,000 casualties to Xu Shiyou's troops were immeasurable, because the wounded soldiers needed to be treated, and the consumption of medicine alone was enough to bankrupt Xu Shiyou's Third Route Army. …,

After paying heavy casualties, the 3rd Route Army under the command of Xu Shiyou finally defeated Zhangjiakou City, and Lieutenant General Ando Toshiyoshi was originally ready to use the strong fortifications of Zhangjiakou City to completely consume the troops of the Inner Mongolia Military Region here, just like Xu Shiyou did when he killed his Fifth Division.

However, a dramatic scene happened under the city of Zhangjiakou, and the steel feast originally prepared for Xu Shiyou's department was not useful at all, and was easily solved by Xu Shiyou's department. The Japanese army built hundreds of large and small pillboxes in Zhangjiakou, and could also guide Xu Shiyou's troops to Zhangjiakou City.

However, when Xu Shiyou's troops approached the city, Xu Shiyou did not order the troops to storm Zhangjiakou at all costs, as the Japanese army expected, but only dispatched a small part of the troops to attack the Japanese strong fortress head-on, and at the same time concentrated the two artillery brigades and regiments to carry out an uninterrupted bombardment of Zhangjiakou City.

However, these are only superficial things, Xu Shiyou's killing move is underground, half a year ago when Xu Shiyou's department retreated from Zhangjiakou City, a tunnel leading to the city was specially left, and the entrance to the tunnel was the government compound of the Yuanchanan Administrative Committee. This tunnel was originally left by Xu Shiyou's troops to prepare for the counterattack on Zhangjiakou, so it was built extremely hidden, and even the soldiers of Xu Shiyou's department knew very little, let alone the Japanese army.

On the night of December 15, about 10,000 people under Xu Shiyou's command secretly entered the tunnel at night, and then the army suddenly appeared in the city. The most unexpected thing is that this courtyard of the puppet administrative government of Chanan at this time turned out to be the command headquarters of the Japanese defenders in Zhangjiakou, and the division headquarters of the Fifth Division and the 38th Division were located here.

At the first time, the Japanese command in Zhangjiakou was completely destroyed by the Chinese army, and all the senior commanders, including Lieutenant General Ando Toshiyoshi, commander of the Japanese Fifth Division, and Lieutenant General Yoji Fujii, commander of the Japanese 38th Division, were directly killed, and the entire Japanese command was taken over by the Chinese army in a very short time. Then the Chinese army after getting the real deployment plan of the Japanese army targeted to encircle and annihilate the Japanese army, under the internal and external attack, the Japanese army quickly collapsed, and the remnants of the army under the command of the commander of the 9th Brigade, Major General Kunizaki Noboru, quickly withdrew from Zhangjiakou and withdrew to the Beiping area.

However, Xu Shiyou's subordinates were unforgiving, and did not give Major General Kunizaki Noboru a chance to reorganize his troops, and ordered the 6th Field Division and the 7th Field Division and the remaining tens of thousands of troops to kill together in the Beijing-Tianjin area. At this point, the Japanese army's complete defense system in the four corners of Beijing, Tianjin, Tang, and Zhang was simply gnawed by the Inner Mongolia Military Region, and the remaining places could no longer form a complete defense system.

Just when Xu Shiyou's headquarters recovered Zhangjiakou, the Japanese Third Army finally completed its assembly, and took a train directly from Shenyang to Shanhaiguan, preparing to take Shanhaiguan immediately after the whole army went south to eastern Hebei. However, the Third Army ran into trouble as soon as it left Shenyang, and the military column they were riding on was bombed by the Chinese army on a small bridge in Haoyanggou, and under the attack of a large number of explosives, the small bridge in Haoyanggou turned into a piece of rubble in an instant, and also overturned a military column, and a large number of soldiers suffered different degrees of light, and the losses were not small.

The most important thing is that after this bomb attack, the Japanese army's plan to fight south by train can almost be said to be completely aborted. It seems that the plan of the army to fight south can still be carried out, but it must be advanced on foot with all the troops. However, in this way, the fastest speed from Shenyang to eastern Hebei will take a week and a half, and it will not be able to quench the thirst at all.

It was none other than Li Dingguo's Flying Dragon Special Operations Brigade that sabotaged the Japanese Third Army's southward operation. The Flying Dragon Special Combat Brigade has been greatly challenged and tempered after entering the Northeast, and because the natural conditions in the Northeast are harsh and the population is not large, the Flying Dragon Special Combat Unit, which is overwhelmingly southern, suffered a lot of losses when it first entered the Northeast, and almost one-third of its strength was lost in the first few operations. …,

However, Li Dingguo was also the first batch of apprentices taught by Han Yunhua himself, and he had a very deep understanding of Li Dingguo in special operations, so he soon summed up his experience, innovated tactics, and repeatedly made breakthroughs in the battle with the Kwantung Army, and finally gained a firm foothold in the northeast region.

The infantry brigade that Li Dingguo brought to the northeast has now expanded nearly three times more than when he first arrived, and in terms of numbers, it is far more than the vast majority of infantry divisions in the Inner Mongolia Military Region. Moreover, the soldiers created by the harsh environment in the northeast region are all iron-clad and good-boned men, and in terms of combat effectiveness, they are far stronger than those main divisions of the Inner Mongolia Military Region.

After receiving a telegram from the military region headquarters that the Japanese army might send the Kwantung Army to fight in the south, Li Dingguo, with Shen Yuquan's consent, won three major victories in the northeast region in a row, completely annihilating an infantry brigade of the Kwantung Army.

After learning that Han Yunhua's unit was in difficulty, the Northeast Resistance League immediately walked out of the mountains and forests one after another, attacking the strongholds of the Japanese puppet army in all directions, and flanking the battle of the Inner Mongolia Military Region.

Although it is not difficult to shake the foundation of the Japanese puppet army's rule in the northeast, it can greatly mobilize the Japanese army and contain its troops.

The achievements of Xu Shiyou's department in Zhangjiakou greatly stimulated Master Chen on the eastern Hebei front, and after learning that Xu Shiyou's department had taken down Zhangjiakou, which was heavily defended by the Japanese army, in just one month, and also gave the headquarters to a pot, the division commanders and brigade commanders of the Japanese army, except for Major General Kunizaki Noboru who commanded the battle on the front line, escaped by luck, and none of the others escaped. In addition, even the main forces of these two divisions were almost all eaten, and this record was enough to make Xu Shiyou become a famous general in the Inner Mongolia Military Region after Han Yunhua and Yang Chengwu. The most important thing is that after this battle, the Peiping defensive circle painstakingly managed by the Japanese army can no longer become a system, and its merits are indeed extraordinary.

Stimulated, Master Chen immediately organized troops to launch a fierce attack on the Japanese puppet army in Tangshan City, and ordered Bao Sen's headquarters, which had just been expanded into the 30th Division, to immediately reinforce Shanhaiguan, so as to block the Third Army of the Japanese Kwantung Army outside Shanhaiguan and buy time for the Chinese troops in the pass to gather and annihilate the Japanese North China Front.

The drastic changes in the war situation in the Zhangjiakou area made General Tada Jun really feel the threat of death, when Major General Kunizaki Noboru fled all the way back to Beiping with four or five thousand remnants of the defeated army, the Japanese expatriates in the entire Beijing-Tianjin area immediately panicked, Han Yunhua's headquarters and other Eighth Route Army and even the troops of the Nationalist Government are simply two concepts, especially when dealing with Japanese expatriates, they will not give any preferential treatment because they are ordinary people, and almost all Japanese prisoners will be regarded as prisoners, especially adult men. The defenders of Datong City are a good example, if it weren't for Yoshito Takagi, who was still a capable commander and decisively chose to surrender when he saw that the situation was irreversible, otherwise, there would be no other end for those surviving expatriates and soldiers than to perish.

On December 22, 1940, Xu Shiyou's troops forced Changping and Miyun counties, and at the same time, the integrated 300th Division also captured Baoding the day before, except for a small part of the Japanese surrender, almost all the Japanese troops of a brigade were annihilated, in addition to the forced landing of two puppet infantry ......divisions.