What's more, low-temperature distillation of tar processing liquid fuel is currently an advanced technology that was put into actual production in 1933, with Germany's most developed technology.

The legendary figure in the legendary story, Mr. Zhang Dayu, who obtained a Ph.D. in engineering from the University of Dresden, Germany, only noticed this technology when studying in Germany. There was no ready-made experience to learn from. It was a complete thousand studies, experiments, and then pieced together, or even made homemade equipment, which filled the gap in the country and caught up with the world's advanced pace.

There was a shortage of equipment and a shortage of technical personnel, but Yang Tianfeng also had a unique advantage, that is, ready-made technical materials, even beyond the technological level at that time. Of course, he did not want to cherish it himself, but wanted to contribute this technology, do his part to the War of Resistance and the country and nation.

That's right, just do your best. Because Yang Tianfeng is alone, he doesn't have two heads (two are not enough), and he doesn't know how to clone his body. His energy is less than technology, military industry, and most important military affairs. He can only write out materials for many things and plan the correct development direction and steps. He can occasionally provide written or on-site guidance during his busy schedule, but most of the work depends on the efforts of the following personnel.

Don’t forget that during the War of Resistance Against Japan, the base areas behind enemy lines were different from those in the rear. Without sufficient military power, the safety of the factory was not guaranteed. All construction achievements were temporary, and they were all buildings built on the sand.

Compared with Yang Tianfeng's ambition, military achievements and reputation are not very important now. Instead, we must try our best to delay the Japanese's attention to him and pay attention to the Third Column, so as not to incur large-scale revenge before he is ready. But we must also show the value of ourselves and the Third Column to obtain material and financial assistance from all parties, which means adopting two-sided strategies.

Based on this idea, he did not preach the Japanese major general who had captured the Japanese army before, and asked the government to keep it confidential and keep it low-key. This time, he also secretly announced the Japanese army flag, hiding it and leaving it for a suitable opportunity in the future.

When the National Army and the Anti-Japanese Team were both in the lead in reporting their achievements and even exaggerating them to boost the morale of the people, this practice obviously created an illusion for the Japanese army that the flag of the Jinzi Regiment had been destroyed by the flag guards, and naturally they would not make such a shame public.

In addition, the number of soldiers and generals was deprived of troops and anti-Japanese armed forces in various places was increasing. In winter, the Japanese were dispatching troops and consolidating the defense of important strongholds, and the revenge against the Third Column was not carried out immediately.

On the surface, the Third Column entered a rest period after advancing eastward. Although there were still frequent small battles on the edge of the base area, large-scale operations seemed to be not available in the short term. But in fact, Yang Tianfeng was secretly dispatching troops and conducting targeted intensive training, preparing to participate in a war away from the base area.

…………

The wheels of history are rolling, and the flames of the War of Resistance are burning.

At dawn on March 17, 1939, the Japanese army around Wuhan quickly mobilized and assembled the forces of four main divisions, including the 101st, 106th, 116th and 6th, as well as four and a half revolvers of heavy artillery, one and a half revolvers of combat vehicles, one and a half revolvers of navy, and one part of the air force, and three routes to the Chinese army west of Poyang Lake, launching an attack on the entire line.

Due to training, extremely poor mobility, coordinated combat, etc., the Third and Ninth War Zone Military Command delayed the order to complete the assembly of troops before March 10 and enter an attack situation, and launched an attack on March 15.

The fighter plane was fleeting and the lesson was profound! And the Japanese army won time, and the Chinese army's original plan of preemptive offensive suddenly came to an end! The troops were caught off guard, rushed to fight, and fell into a passive state on the whole line.

The Battle of Nanchang was the first large-scale battle after the second phase of the Anti-Japanese War was determined, and it was also the initial attempt of the Japanese army to transform from a strategic offensive stage to a long-term protracted stage. The experimental nature was strong, and both sides showed rare and bold creativity and expanded the combat resources they could use to the extreme.

The commander of the 11th Army, Okamura Yasuji, was a very smart commander among the Japanese generals, and he also knew how to disguise himself on the surface, not as perverted as ordinary Japanese soldiers. At the same time, he was also very talented in leading troops and very experienced and vicious in command.

During the Battle of Nanchang, in addition to the traditional infantry forces, Okamura Yasuji used chariot troops and artillery units ingeniously and formed a powerful mechanized attack column.

Before this, the Japanese army had always dispersed combat vehicles to individual infantry divisions and used them in different ways. During combat, they were used as cover for infantry, and conceptually the tone of infantry combat vehicles.

However, Okamura Yanji concentrated 76 Type 89 medium-sized combat vehicles and 59 Type 94 light combat vehicles, and independently formed a combat vehicle convoy as a breakthrough force, and used armored vehicles to wear an infantry brigade to fight together. With the addition of engineers, infantry and other special forces, this combat vehicle convoy is almost a complete armored division.

In addition, in the arrangement of air aid, the 45th Corps of the Third Flying Division designated by Okamura to provide close contact support for the combat vehicle convoy, and prepared continuous reconnaissance dynamics of the reconnaissance squadron, so that this combat vehicle convoy can obtain complete ground-to-air coordinated combat conditions

It is even more surprising to use artillery in a concentrated manner.

The Japanese army has always assigned individual field heavy artillery gangs to the infantry division. This time, Okamura organized four 150 field heavy artillery gangs, two 75 field artillery gangs, one 75 mountain artillery gangs and one 150 cannon siege artillery gangs into the Sixth Artillery Brigade, which made the artillery brigade concentrate 170 artillery pieces, including 72 150 howitzers and sixteen 100 cannons, which are larger than a Russian artillery division.

In contrast, the strategic and tactics of the National Army were first delayed the assembly and attack time, and then delayed the destruction of the highway. Because destroying the highway meant that the defenders could not use the highway, Commander-in-Chief Luo Zhuoying held this view, believing that in a defensive position, traffic behind the rear was extremely important, and hesitated for this...

Yang Tianfeng didn't know much about the situation of the Nanchang Battle. He said what he should say and did what he should do, and no matter how much he cared about it, he had focused his main energy on the upcoming war that could directly play a role or even change the results.

"Steel fist, grenade launcher, is the weapon that Commander-in-Chief Sun urgently needs." Shi Tongran, director of the recruitment department of Luxi and liaison officer of the Third Group Army, was talking to Yang Tianfeng with an expectant look. "Attacking Kaifeng is a big deal. If Brother Yang can send troops to help the battle, it will be better. Commander-in-Chief Sun said that he would hold a banquet for Brother Yang in Zhengzhou, which not only welcomes the crowd, but also celebrates and commends Brother Yang's victory in Suzhou."

If I didn't invite me, I would jump high! Yang Tianfeng felt proud, but his face did not show his thoughts.

After the war in the eastward battle, Yang Tianfeng presented the battle report to Sun Tongxuan and Liao Lei, and seized the command knife, telescope and other seizures as gifts to the two. At the same time, Yang Tianfeng also sent out a steel fist, a grenade launcher and a shotgun. The number was not large, but it seemed like a lure.

From Yang Tianfeng's psychological point of view, he did have this meaning. It was not the first time that he had supplied the Third Army, but it was difficult to support a war in quantity. This was exactly what he needed to achieve, to participate in the war and strive to change history.

Historically, on April 1, 1939, the Third Army of the National Revolutionary Army smuggled across the Yellow River and successfully attacked the Japanese army stationed in Kaifeng. After the news came out, it immediately caused a sensation across the country. Foreign news agencies said: This is the first effective attack by the Chinese army on an important city that has occupied by the Japanese army.

At that time, the Third Army dispatched a mixed division with more than 12,000 people; the Japanese army had infantry, cavalry, artillery, chariots and other troops in Kaifeng, with about 1,000 people defending.

If we only look at the comparison of troops, from ten to one, we did not completely wipe out the Japanese army and restore Kaifeng, but only "effective attacks", which may cause doubts and may be puzzled.

But war has never been a simple number game. Aside from the lack of heavy weapons in the National Army, it is difficult to attack. The Japanese army has factors such as city walls and fortifications, strong firepower, and tenacious combat. Attacking Kaifeng was a lonely army to go deep into the enemy-occupied area, without any logistical support or reinforcements. It also has to be prepared for Japanese reinforcements around Kaifeng. The difficulties and dangers are conceivable.

If Yang Tianfeng commanded this battle, if he fought for a long time, he might have to use a lot of troops to intercept the Japanese reinforcements. In addition to artillery, communications and other non-combat soldiers, the number of troops that can be deployed to attack and open the seal is only about five or six thousand. In the battle, such a comparison of troops is really not an absolute advantage.

"I will send troops to help Commander-in-Chief Sun achieve such brilliant military achievements." Yang Tianfeng finally spoke slowly under the expectant gaze of time, "But the news of my rush to Zhengzhou must be kept confidential. This is for the safety of the base and the secret of attacking Kaifeng."

Shi Tongran let out a long breath and finally had a perfect explanation to Sun Tongxuan.

Yang Tianfeng supplied a small number of new weapons to the Third Army, which not only strengthened the combat power of the troops, but also gave Sun Tongxuan a greater appetite and hope. If the attack on Kaifeng could become a restoration of Kaifeng, what kind of sensation would it be? I really dare not even think about it.

During the War of Resistance Against Japan, if it were not counted as the Japanese army voluntarily abandoned and liberated after surrender, the Chinese army did not regain a large and medium-sized city in the true sense, which is a pity.
Chapter completed!