On the night of 28 July, after a day of hard fighting, the 29th Army was unable to continue its glorious achievements against Japan. At Nanyuan Airport, the soldiers of the 29th Army held out for only one day because of the martyrdom of Division Commander Zhao Dengyu and the serious injury of Deputy Army Commander Tong and their morale was completely lost.

Of the three well-known leaders, Zheng Dazhang was the only one left, and Zheng Dazhang had no choice but to lead the crowd to break through on the night of the 28th.

Unfortunately, during the retreat, they encountered the Japanese army, although the number of this Japanese army was not large, only a few hundred, but the well-equipped Japanese army still brought heavy casualties to Zheng Dazhang's breakthrough troops.

The two sides even started a white-knuckle battle, although the broadsword of the 29th Army finally defeated the Japanese bayonet, but the Japanese artillery fire that came to retaliate bombarded the 29th Army again, and as a result, Deputy Army Commander Tong, who was wounded and commanded the operation, was hit by the shell again and died a heroic martyr.

In fact, the breakthrough that night was not smooth, as if according to the original retreat route, it was always timely to encounter the Japanese army's interception.

Fortunately, Zheng Dazhang decided to change the original retreat route on the spot, and temporarily chose to break through from the frontal junction of the Japanese army, which really made Zheng Dazhang break out.

Although the Japanese army that found that Zheng Dazhang had broken through the encirclement and left again dispatched troops to encircle and intercept him, under the guidance of the Nanyuan veterans who were familiar with the terrain, Zheng Dazhang led a team of several thousand people to finally throw off the pursuit of the Japanese army and arrive in Beiping safely.

When Zheng Dazhang led 600 student soldiers and 3,000 veterans of the war to fight their way out of a bloody way and fled to Beiping in the early morning of the 29th, Song Yuanzhe saw the officers and soldiers of the 29th Army who had suffered heavy casualties, and then looked at the bodies of the two generals Tong and Zhao, and was in pain.

The two generals who died were both old men of the Northwest Army, and Song Yuanzhe was an old brother who was born and died together. The death of the two generals hit Song Yuanzhe very hard, and Song Yuanzhe ordered on the spot to reorganize the army and fight, and swore to live and die with Beiping.

On the morning of the same day, when Zheng Dazhang's troops had just entered Beiping City, the Japanese troops at Nanyuan Airport, which had just been occupied, again sent dozens of planes to bomb Beiping.

At the same time, the defenders of the 29th Army in Wanping County also took the initiative to evacuate the army and return to Beiping because of the loss of Nanyuan Airport. Unfortunately, their road back was also full of hardships, and many of the originally designed routes were ambushed by the Japanese army, and by this time, the 29th Army was already sure that there were traitors in their 29th Army, and their status was not low.

At this time, Beiping had most of the 29th Army, with nearly 30,000 troops. However, there were also 30,000 elite Japanese troops who were freed up and were moving to Beiping City on three sides, trying to encircle Beiping City.

On the morning of the 29th, when the news of the sacrifice of General Zhao Dengyu and General Tong Linge reached Nanjing, Commander Chiang of Nanjing also wept bitterly, and the two generals Zhao and Tong were the first lieutenant generals and division commanders to die in the Sino-Japanese war, and they were also the people with the highest rank of fallen soldiers at present.

At the same time, Commander Chiang once again called on the people of the whole country to unite and fight against the Japanese army together. At the same time, Commander Chiang knew that in the Pingjin area, the Japanese army's advantage was too great to hold for a long time.

So he secretly ordered Song Zheyuan to temporarily retreat to Baoding, Hebei, and wait for the arrival of reinforcements from the Central Army in the north in order to fight again.

Looking at the telegram in front of him that made him retreat, Song Yuanzhe's eyes almost erupted with fire. However, in the first battle of Nanyuan, he almost suffered nearly 5,000 casualties, and lost a large amount of materials, and he didn't have much capital to fight again.

Moreover, Beiping is a famous ancient city in China, and he does not want this historic ancient city to be destroyed by war.

It's just that when he thought of receiving a large amount of funding from Li Tie a month ago, Li Tie once reminded him that once Japan provoked a war again, it would definitely be a war of annihilation with the strength of the whole country, so he must be more careful and guard against the attack of the Japanese army.

However, when the Lugou Bridge Incident really happened, although their 29th Army fought valiantly and repelled the attacking Japanese army. However, the Japanese army's demand for an armistice paralyzed him, making him think that Japan was just selling out if it could not take advantage of it as before.

And his troops have just expanded to 100,000 people, and the troops have not digested and run in well at all, and he also wants to take the opportunity to deal with Japan for a little more time. When his troops are well run-in, he has the rich land in the Pingjin region again, and maybe he can also become a candidate.

It's a pity that greed blinded him, and Song Yuanzhe, who thought he was the only inheritor of the Northwest Army, let his ambition corrupt his intelligence.

Under carelessness, he did not seriously repair fortifications at Nanyuan Airport and several important strategic points in Pingjin and make active preparations for war, and the result was that he ended up today.

Now the Japanese army is obviously bent on annexing the Pingjin area, and if Beiping is lost, Tianjin will be even more unable to hold within the range of Japanese naval artillery attacks.

However, he had just been stationed in the Pingjin area, and he had no foundation here, so he had no choice but to send a telegram to Zhang Zizhong's division in Tianjin, telling Zhang Zizhong to prepare for a little defense and withdraw to Baoding, Hebei.

Division Commander Zhang Zizhong refused to carry out the order to retreat on the spot, and he wanted to live and die with Tianjin. The millions of people in Tianjin must not be allowed to fall under the iron hooves of the Japanese.

Song Yuanzhe could only persuade Zhang Zizhong that Commander Chiang's army of hundreds of thousands was heading north, preparing to assemble near Baoding, Hebei, and then go north to recover Pingjin and drive away Little Japan.

Retreating now is for the sake of attacking in the future, if you don't retreat now, you will lose both men and land, and if you withdraw now, you can still keep your useful body, and only then will you be able to counterattack in the future to survive both men and land.

Although Song Yuanzhe did not have much confidence in whether he could attack Pingjin again, he had already lost two tiger generals, and Zhang Zizhong was his last tiger general, and he was really reluctant to Zhang Zizhong to die on the battlefield.

After careful consideration, Zhang Zizhong finally obeyed Song Yuanzhe's order, but he had to wait for Song Yuanzhe to safely evacuate Beiping before leading his troops to retreat from Tianjin.

In this way, at noon on July 29, Song Yuanzhe took advantage of the fact that the Japanese encirclement had not yet formed, and led his troops to evacuate Beiping in a hurry.

However, on the day of the evacuation of Beiping, there was another episode, and the student army who were bent on avenging Division Commander Zhao Dengyu and Deputy Army Commander Tong Linge resolutely refused to leave.

In particular, there were more than 200 Peking University students headed by Qiao Zhengwei, and they insisted that even if they donated, they would fight to the death with the Japanese army.

In the end, it was Master Zheng who personally persuaded them, saying that they were the future pillars of the country, and that they should use their advanced cultural knowledge to learn the skills of 100 enemies, 1,000 enemies, and 10,000 enemies, instead of wasting their precious lives fighting bayonets with the Japanese army.

Qiao Zhengwei, who was inspired, immediately called on 200 college students from Peking University to go to Shanghai Huaxing Aviation School to learn to fly airplanes, because as long as they can fly airplanes, they can block 100 and 1,000.

Zheng Dazhang saw that the student army in front of him misinterpreted his meaning, but fortunately, these student troops still agreed to withdraw from Beiping.

So Zheng Dazhang did not continue to explain, but sent them coiled and asked them to disperse and evacuate in dozens of teams.

In this way, at noon on the 29th, when the commander of Song Yuanzhe led more than 20,000 remnants of the army to retreat from Beiping to Baoding, Hebei. On the afternoon of the 29th, the Japanese army finally encircled Beiping and occupied it almost without firing a single shot.

And it was not until this time that the traitorous face of Pan Yugui, the director of the administrative department of the 29th Army, became known to everyone, and it turned out that the 29th Army left Beiping on the front foot, and the Japanese army entered Beiping on the back foot, and the time was not bad.

In particular, when the Japanese army entered Beiping and immediately announced that Pan Yugui was the acting mayor of Beiping and had full authority to handle the political affairs of Beiping, many officers and men of the 29th Army who were still hidden in Beiping and did not leave immediately understood the causes and consequences of the defeat of the 29th Army.

It turned out that Song Zheyuan had absorbed too many local troops in the past six months after the Xi'an Incident. His troops once exceeded 100,000 people, but because of the lack of personnel, the actual combat effectiveness of the 29th Army was greatly reduced.

At the same time, because there are many people in various units who are bent on defecting to the enemy, and the Japanese army has been deliberately bribing these generals who are ready to surrender to the enemy as early as half a year ago.

Therefore, at the beginning of the war, the various deployments of the 29th Army had already been revealed to the Japanese army by these traitors. And this is also the reason why Li Tie only sent countless arms to Song Yuanzhe before the July Seven Incident, and did not send troops to reinforcements.

Because Li Tie also didn't know how many people in the current 29th Army would be sincere in resisting Japan, and how many people were preparing to defect to the enemy.

Li Tieke, who also raised troops on Hainan Island, knew that after so many years of unremitting efforts, even with his full support, the current Hainan Island Escort Army would only reach the scale of 50,000 people.

In this way, it was also expanded on the premise that he had the original Huaxing Guard of 5,000 people and absorbed 5,000 veterans of the 19th Route Army, and it was only expanded by 10,000 people every year.

The purpose of such a careful expansion of the Hainan Guard Force is to maintain a strong combat effectiveness. After several years of elite military policy, Li Tie's military education level is the highest among all the troops in China.

Almost every soldier can know more than 1,000 words, and many soldiers are multi-skilled, some can drive cars, and some can drive tanks.

Li Tie's suggestion to Wang Yaqiao was to train ordinary soldiers in each squad to be multifunctional troops who could read maps, drive cars, and use tanks.

However, because Li Tie and Wang Yaqiao have been developing in a low-key manner, and at the same time, Hainan Island is hanging overseas, so it has not received the attention of all forces across the country.

Therefore, the whole Chinese army did not know that Hainan had such a powerful Hainan escort force that could fight well, and when Li Tie found that the Pingjin War was still the same as the original history, and there was no change at all, Li Tie was angry this time.

He did not believe that under the premise that he had such foresight and made a lot of preparations, the Shanghai War of Resistance and the Nanjing War of Resistance would still be the same as the original history.

Therefore, when the Japanese army occupied Beiping on July 29 and occupied Tianjin on the 30th as in the original history, Li Tie knew that soon the hundreds of thousands of troops of Commander Chiang would counterattack the Japanese army in the Pingjin area, and at the same time let the family fight for thousands of miles and rout.

Li Tie knew that he could not do anything about it when he was far away in Hainan. However, in his base camp, Li Tie believes that he will give the world a different Shanghai War of Resistance.