Of course, if Okamura Ninji knew, as early as September, the Anti-Japanese Federation sent reconnaissance personnel, under the cover of the Jincha Jiping Western Brigade, to secretly conduct several surveys along the Yongding River valley from Huai to the front line of Sanjiadian, and in some places even repeated surveys more than once. The water volume, glacial age, and ice thickness of the Yongding River in winter have been repeatedly investigated.

And with all the tank types equipped by the Anti-United Nations, some drills were done for the different terrains. Only then did he finally make up his mind to use the American-made M-3 light tanks with strong cross-country ability and high unit horsepower, and use cavalry as a cover to pass through the Yongding River Gorge and avoid the Japanese army's defensive position in Xishan.

Directly inserted into the line from Mentougou to Sanjiadian, with the light infantry that broke through from both flanks and the first section of the Shanxi-Chahar-Hebei Military Region, directly threatened the line of Beipingcheng, Wanping and Changxindian from Pingxi. Moreover, the entire campaign plan, the anti-United Nations armored troops have also gone through countless repeated drills, and prepared several sets of response plans for unexpected situations.

The sudden attack by the Anti-Japanese Federation made the relatively calm and stable front in the entire Pingxi region suddenly become surprisingly lively. And Mentougou and Sanjiadian are already close to Beiping City, and Lugou Bridge and Wanping City, which fired the first shot of the 77 Incident, are also close at hand.

After the anti-coalition forces hit the three stores, the sound of artillery could be clearly heard in the entire city of Beiping. Although the traitors of all sizes in Beiping City, although the Japanese army's war situation has always kept them strictly secret, they do not know much about the war on the periphery of Beiping. But the rumbling artillery in the northwest and the planes of the Anti-United Nations in the sky of Beiping City could not hide them. After all, they are not blind, let alone deaf.

Cannon fire rang out from the direction of the three stores, and for a while, people in the group of rapes in Beiping City were panicked. First as the seat of the puppet North China Provisional Government, and now it has become the seat of the puppet North China Political Affairs Committee, as well as the location of the North China Public Security Army General Headquarters, the number of traitors can be said to be the highest in the country, and it is definitely not inferior to Nanjing, the current seat of Wang's puppet regime. The troops of the Anti-Japanese Federation hit the city of Beiping, and these gangs of traitors were like headless flies for a while.

There are those who want to take advantage of the fact that the railway between Pingjin and Tianjin has not been interrupted, and want to go to Tianjin so that they can get on the ship at any time and escape. Some are privately prepared to contact the Chongqing side so that they can do so at any time. Some want to take advantage of the surrounding anti-coalition forces to enter the city, and some want to sneak out of the city and hide in the countryside.

It turned out that the traitors of all sizes in Beiping City, who were dancing their teeth and claws, and who were fighting for tigers, completely disappeared on the streets. Even those pseudo-policemen were much more polite at once. Instead of daring not to give money, he begged his grandfather to sue his grandmother, trying to find a guarantor to prove that he was forced to be a pseudo-policeman during the fall and had not done anything bad.

As for the ordinary people, they listened to the sound of the cannon that was already close at hand, but their faces were full of joy. Even many people in the city are already preparing to welcome their troops into the city. Although most of them did not know anything about the Anti-Japanese Federation that had already been fought outside the city and Yan'an, it did not prevent them from feeling this joy from the heart.

Since the withdrawal of the 29th Army from the 77 Incident, Beiping City has fallen for a full six years. The people in Beiping City have not seen their own army for six years, and they have been struggling under the iron hooves of the invaders for six years. But as long as there is a little backbone Chinese, who wants to be a slave to the country?

Looking south to Wang Shi for another year, it is the true mood of these simple Chinese people. It's just a bitter expectation, but it has disappointed these people year after year, and even a considerable number of people have despaired. Now that it is about to be realized, many people dare not show it on their faces, but they are very happy in their hearts.

Compared with the Beiping City, after hearing the rumbling cannon that was close at hand, some people were happy and some were sad. and the high-level traitors and puppet army generals of the puppet government in chaos, as well as the big and small traitors who are panicked all day long and want to find a way to survive for themselves.

Faced with the situation that the Anti-Japanese Federation has been beaten to the bottom of his nose, in the end, Yang Zhen's most valued opponent, Okamura Ningji is much calmer than his chief of staff, Lieutenant General Sanji Narito, and Deputy Chief of Staff, Major General Nakanishi Sadaki. Without the slightest hesitation, he rejected the suggestion to immediately transfer the second-line corps to Beiping for reinforcements.

Instead, he ordered the independent mixed Eighth Brigade in Pingxi to immediately gather the scattered troops that had been rushed, along the line from Mentougou to Sanjiadian, and block the tank troops of the Anti-Union at all costs in the gorge of the Yongding River and the lofty mountains around Mentougou.

However, considering the existing strength of the independent mixed 8th Brigade, it is simply unable to cope with the sweeping resistance. He urgently concentrated the city of Beiping, and all the troops that could be mobilized were strengthened to Pingxi. From the direction of Fengtai, a direct engineer wing of the front army was mobilized, plus a field supplementary team, to immediately reinforce the first line of Wanping and Lugou Bridges in Pingxi, preparing to build a second line of defense to ensure the safety of Beiping City.

Okamura Ninji rejected Lieutenant General Oseito Sanji, and the reason for the transfer of reinforcements from the second line was very simple, since the sudden change in the battle situation in the northwest of Ping, he had a faint feeling. This wonder army will definitely not be the only feast and surprise that his young opponent has prepared for himself.

Although there is no information on this yet, as a veteran of the battlefield with a keen sense of smell, this feeling has always lingered in his heart. This is a judgment he made out of a soldier's intuition. Therefore, before the emergence of the follow-up force of the Anti-United Nations, he will definitely not use the reserves deployed in depth.

Okamura Ninji firmly believed that even if the enemy commanders had to ensure a certain amount of strategic reserves, they would definitely still have a large number of troops hidden in the lofty mountains and mountains of Pingbei and had not been put into the battlefield. Therefore, he resolutely did not transfer the troops in the Jizhong Plain area on the second line to the first line for reinforcements.

Even though Huairou and Shunyi, the two key points in the northern direction of Pingbei, had already been captured by the Anti-Japanese Union, he only transferred a wing of the 48th Division to Sunhe and Beiyuan as the second echelon. However, the situation around Beiping also made him have to consider the safety of Beiping City.

Just kidding, if the location of the headquarters of the North China Front Army is lost, then the commander of this front army of his own will also be the head. After hesitating for a long time, he still transferred five infantry squadrons from the 17th Division and the 110th Division to immediately reinforce the Beiping battlefield in the north.

Okamura Ninji's decision not to see a rabbit or an eagle, not to see the enemy's reserve troops to participate in the battle, and the decision that the second-line combat echelon will definitely not be easily dispatched cannot be said to be incorrect for the current situation. But he forgot that if everything was so sure that it could be dealt with according to convention, then there could be no miracles in the war.

After winning Shunyi and Huairou in succession, on the battlefields around Beiping, a large number of tanks appeared for the first time. On the fifth day of the battle, the Anti-Japanese Federation suddenly put in tank troops for the first time in the Pingbei battlefield. Two tank regiments and an infantry division cooperated to suddenly attack from the mountainous area of Pingbei, ignoring the desperate efforts of the surrounding Japanese troops, and the target was directly aimed at the Tongzhou line.

Tongzhou is the eastern gateway of Beiping, once Tongzhou is lost, then Daxing and Nanyuan are basically no danger to defend. Even if the Anti-Japanese Federation is willing, their tank infantry cluster can directly kill from Tongzhou to the eastern suburbs of Beiping. At this moment, it can be said that he has taken the lifeblood of Okamura Ningji, and he can't do it if he doesn't mobilize the second echelon.

The Independent Ninth Mixed Brigade deployed in the northeast of Beiping could not even cope with the enemy's powerful offensive, and the entire defense line in the northeast of Pingping was already in a precarious situation. Faced with the rapidly deteriorating overall battle situation around Beiping, Okamura Ninji could no longer hold his breath.

If the first line between Tongzhou and Daxing is really lost, then the ground transportation between Beiping and Tianjin, the two central cities in North China, will be completely interrupted. In desperation, Okamura Ningji, whether he wanted to or not, could only mobilize the troops deployed in depth to the north. At least it will block the offensive of the Anti-United Nations. It must not be allowed to capture Tongzhou in order to ensure the safety of the Pingjin Railway.

What made Okamura Ningji feel even more pressure was that the anti-coalition tank clusters that appeared earlier in Beiping and Tianjin had already torn through the second line of defense of the Japanese army, completed the encirclement of Baodi and captured the Xianghe River. And is concentrating forces to directly penetrate the Pingjin railway line in Baoqing, that is to say, the second line of defense between Pingjin and Tianjin has also been torn open.

The change in the situation made Okamura Ningji unable to calm down. He immediately ordered the 110th Division of Zhuoxian County to immediately go north on the spot, and make a detour to the flank of Sanjiadian and Mentougou through Fangshan and Changxindian. At the same time, it ordered the independent mixed brigade to form the first brigade, stick to the existing positions, and drag the North China Communist Army from the Taihang Mountains to the death.

The First Army was ordered to immediately shrink its forces and withdraw to the Zhengtai Railway and the Nantongpu Railway on all fronts, so as to reinforce the Hebei battlefield at any time. His order to the First Army was that, with the exception of the 37th Division of the Nantongpu Railway between Yuncheng and Taiyuan, the First Army, with the strength of no less than one division, would abandon its existing positions, cooperate with the 3rd Mixed Brigade, and immediately shrink along the Zhengtai Railway.

The 59th Division, which had been reinforced from the 12th Army before the war, was ordered to immediately launch a campaign to recapture the line between Baodi and Xianghe along the Pingjin Railway with the cooperation of two tank wings. The Japanese army in Tianjin was ordered to immediately dispatch no less than one independent mixed brigade to strengthen the strength of a tank wing and launch an attack from Tianjin to the northeast.

Although the reserve forces had already begun to be mobilized, Okamura still commanded the 17th Division, as well as most of the remaining tank wings. Firmly in the hands as the last strategic reserve. At the same time, he ordered the First Army to shrink its forces and prepare to withdraw from the Shanxi battlefield and devote itself to the Hebei battlefield.

Although the battle has only been fought for a few days, Okamura Ninji already feels that the troops in his hands are far from enough. The main force of the dispatch army was deeply trapped in the Changde battlefield, and it was difficult to withdraw it for a while. The reinforcements of the 15th Army, the base camp will still have to wait and see. At this time, Okamura Ningji could no longer take care of the overall strategy of the base camp, Hebei could not hold it, and the first army of Shanxi became a turtle in the urn.

Once Pingjin is lost, what is the use of the First Army in Shanxi remaining in Shanxi? Pingjin was lost, and the First Army was cut off from all channels of contact with the outside world. In the case of isolation, and even logistics and supplies cannot be opened, they can only let people eat them bite by bite.

Rather than let him sit back and watch the war situation in Hebei erode, it is better to take the opportunity to transfer him back to Hebei and make every effort to hold on to this choke point connecting the Kwantung Army to the dispatch army. Leaving a 37th Division and the 3rd Brigade of the Independent Mixed Brigade, deployed along the Nantongpu Railway and along the Zhengtai Railway, can be regarded as an explanation to the base camp.

The 110th Division and the 48th Division, which Okamura Ninji was originally unwilling to use, finally moved, which meant that the best time for Yang Zhen to attack had come. At the same time that the main force of the 110th Division, which was forcibly reinforcing to the north despite the air raids of the Anti-Japanese Alliance, entered the front line of Fangshan, after Yang Zhen started the battle, the two armored clusters in the east and west, which had been hiding and waiting, issued an order to attack on the whole line according to the predetermined plan.