What's more, low-temperature distillation of tar to process liquid fuels was not put into actual production until 1933, with Germany being the most developed. Pen, fun, pavilion www. biquge。 info

The legendary figure in the legendary story, Mr. Zhang Dayu, who obtained a doctorate degree in engineering from the University of Dresden in Germany, only noticed this technology when he studied in Germany, and there was no ready-made experience to learn from.

The same lack of equipment and the same shortage of technical personnel, but Yang Tianfeng also has a unique advantage, that is, ready-made technical information, even beyond the level of science and technology at that time. Of course, he didn't want to cherish himself, but wanted to contribute this technology to make a contribution to the War of Resistance Against Japanese Aggression, and to the country and the nation.

That's right, just do your part. Because, Yang Tianfeng is a person, he doesn't have two heads (two is not enough), and he can't do the doppelganger technique. His energy is divided into science and technology, military industry, and the most important military, and many things can only be written information, planning the correct direction of development and steps, and occasionally written or on-site guidance in his busy schedule, but most of the work depends on the efforts of the following personnel.

Don't forget, at that time, it was the period of the War of Resistance Against Japanese Aggression, and the base areas behind the enemy lines were different from those in the rear. There was not enough military strength to ensure the safety of the factories, and all the achievements of construction were temporary, buildings built on sand.

Compared with Yang Tianfeng's ambition, his military exploits and reputation are not very important now, but it is necessary to delay the attention of the Japanese to him and the attention of the Three Columns as much as possible, so as not to invite large-scale retaliation before he is ready. However, it is necessary to show the value of oneself and the three verticals in order to obtain material and financial assistance from all sides, which means adopting a two-faced strategy.

Based on this idea, he did not publicize the previous capture of the Japanese major general, and asked the government to keep it secret and keep a low profile; This time, he also kept the flag of the Japanese wing secret, and hid it for a suitable time in the future.

At that time, when both the National X Army and the anti-Japanese team were preemptively reporting their achievements, and even exaggerating them, in order to boost the morale of the people, this practice obviously created a false impression for the Japanese army, believing that the military flag of the Golden Wing had been destroyed by the flag guards, and they naturally would not make such a shameful thing public.

In addition, the loss of troops and the increasing activities of the anti-Japanese armed forces in various places, and it was winter, and the devils were deploying troops to consolidate the defense of important strongholds, and the retaliation against the three columns was not carried out immediately.

On the surface, the Third Column entered a period of recuperation after the eastward advance operation, and although there were still small battles in the marginal areas of the base areas, it seemed that large-scale operations would not occur in the short term. In fact, Yang Tianfeng was secretly dispatching troops and conducting targeted intensive training, preparing to participate in a big battle far from the base area.

…………

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

At dawn on 17 March 1939, the Japanese troops around Wuhan, with their large numbers of automobiles, ships, and excellent equipment, quickly mobilized and assembled the strength of the four main divisions, including the 101st, 106th, 116th, and 6th main divisions, as well as four and a half wings of heavy artillery, one and a half wings of combat vehicles, and a navy and air force.

However, due to such reasons as training, extremely poor mobility, and coordinated operations, the command headquarters of the 3rd and 9th Theaters delayed the order to complete the assembly of troops by 10 March, enter the offensive posture, and launch an offensive on 15 March.

The fighter plane is fleeting, and the lesson is profound! And the Japanese army won time, and the preemptive offensive originally planned by the Chinese X Army came to naught! The troops were caught off guard, rushed to the battle, and fell into a state of passivity on the whole front.

The Nanchang Campaign, as the first large-scale battle after the determination of the policy of the second phase of the War of Resistance against Japan, was also the first attempt of the Japanese army to transform from the strategic offensive stage to the stage of long-term protracted warfare.

The commander of the 11th Army, Okamura Ninji, was a very intelligent commander among the Japanese generals, and he also knew how to disguise on the surface, unlike the average Japanese soldier who was perverted. At the same time, he is also very talented in leading troops, and he is also very experienced and vicious in command.

In the Battle of Nanchang, in addition to the traditional infantry forces, Okamura Ninji ingeniously concentrated the use of chariot troops and artillery units to form a powerful mechanized attack column.

Prior to this, the Japanese army had always dispersed their combat vehicles into infantry divisions and used them separately. In battle, it serves as a cover for infantry and is still conceptually the tone of infantry fighting vehicles.

Okamura Ninji concentrated 76 Type 89 medium tanks and 59 Type 94 light tanks, and independently organized them into a combat convoy as a breakthrough force, and used armored vehicles to equip an infantry brigade to fight together. With the addition of engineers, infantry, and other special forces, this convoy is almost a complete armored division.

In addition, in the arrangement of air support, Okamura designated the 45th Sentai of the 3rd Flying Division to provide close support for the combat team, and prepared a reconnaissance squadron to continuously reconnoiter **** dynamics. This combat team will be able to obtain complete ground-air cooperative combat conditions

And the concentrated use of artillery is even more surprising.

Okamura has incorporated four 150 field heavy artillery wings, two 75 field artillery wings, one 75 mountain artillery wing, and one 150 cannon siege artillery brigade into the Sixth Artillery Brigade, making this artillery brigade concentrate 170 artillery pieces, including 72 150 howitzers and 16 100 cannons, which is larger than a Russian artillery division.

On the other hand, the strategy and tactics of the National X Army first delayed the assembly and attack time, and then delayed the order to destroy the road. Because the destruction of the highway meant that the defenders could not use the road, the commander-in-chief, Luo Zhuoying, held this view, believing that in a defensive position, rear transportation was extremely important, and hesitated to do so......

Yang Tianfeng did not know much about the situation of the Nanchang Campaign. What should be said has been said, what should be done has been done, and no matter how much care you have, it will not help. He has put his main focus on the upcoming big war that will have a direct effect, or even change the outcome.

"Steel fists, grenade launchers, these are the weapons that Commander-in-Chief Sun urgently needs." Shi Tongran, director of the Luxi Recruitment Office and liaison officer of the Third Group Army, was talking to Yang Tianfeng with an expectant expression, "The attack on Kaifeng is a big matter. If Brother Yang can send troops to help in the war, it will naturally be better. Commander-in-Chief Sun said that he would hold a banquet for Brother Yang in Zhengzhou, not only to catch the wind and wash the dust, but also to celebrate and reward Brother Yang's great victory in Suzhou. ”

If you don't invite me, I'm going to jump high! Yang Tianfeng was proud in his heart, but he didn't show it on his face, and he looked thoughtful.

After the eastward expansion battle, Yang Tianfeng presented the battle report to Sun Tongxuan and Liao Lei respectively, and distributed the command knife and binoculars as gifts. At the same time, Yang Tianfeng also sent out steel fists, grenade launchers, and shotguns, which were not many, as if they were luring.

From Yang Tianfeng's psychological point of view, he does have this meaning. It was not the first time that the Third Army was supplied, but it was difficult to support a big war in terms of numbers. And that's exactly what he needs to achieve, to fight in the big war and fight 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 troops 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 occupied by the Japanese army.

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

If we only look at the comparison of troops, with ten to one, there is no complete annihilation of the Japanese army and the recovery of Kaifeng, but only an "effective attack", which may make people question and may feel incomprehensible.

However, war has never been a simple number game, aside from the lack of heavy weapons of the national army, the difficulty of attacking fortifications, the Japanese army has the city wall fortifications to rely on, the firepower is strong, the combat tenacy and other factors, the attack on Kaifeng is a lone army deep into the enemy-occupied area to fight, there is no logistics support and reinforcements, but also to guard against the reinforcements of the Japanese army around Kaifeng, the difficulties and dangers can be imagined.

If Yang Tianfeng commanded this battle, if the battle lasted for a long time, he might have to spend a lot of troops to intercept the devil's reinforcements. Excluding non-combat troops such as artillery and communications troops, the number of troops that can be put into attack on Kaifeng is about five or six thousand. In the battle of tough battles, such a comparison of forces is really not an absolute advantage.

"I will send troops to help Commander-in-Chief Sun achieve this brilliant feat." Yang Tianfeng finally spoke slowly under Shi Tongran's expectant gaze, "But the news that I rushed to Zhengzhou must be kept secret from the outside world, this is for the safety of the base area, and for the secret of the attack on Kaifeng." ”

Shi Tongran breathed a long sigh of relief, and finally could have a perfect explanation for Sun Tongxuan.

Yang Tianfeng supplied the Third Army with a small amount of new weapons, which not only strengthened the combat strength of the troops, but also gave Sun Tongxuan greater appetite and hope. If the attack on Kaifeng can be turned into a recovery of Kaifeng, what kind of sensation it will be, I really can't even think about it.

During the Anti-Japanese War, if you do not count the Japanese army's voluntary abandonment and liberation after surrender, the Chinese * army did not recover a large and medium-sized city in a real sense, which is embarrassing.

Needless to say, the Chinese* army lacks heavy weapons and the ability to attack fortified positions. As a result, the Japanese could station a small number of troops in the city, thus increasing their mobile forces and attacking. In other words, if Kaifeng can be recovered and the defenders can be completely annihilated, it will be a great shock to the Japanese devils, forcing them to change their existing troop deployment or change their strategy. (To be continued.) )