Thanks to Qingsong for his far-reaching love, the pearl of dustlessness, tommychu, 13788896970, the mountain is still hurt, Songsong Yufeng, Zhutouqi, Ning Xin, eee66, 198215dai, Ding Ding Ding, Shang Gaoguang Cangkong and other book friends for their monthly tickets, wishing friends a smooth work and a happy family.

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Now, Yang Tianfeng decided to concentrate on seizing the mountain troops. He drew out the independent brigade and entered the Mangdang Mountain Group to conduct concentrated training according to the "Mountain War Tactics" he formulated. At the same time, he urged all departments to speed up the production and manufacturing of relevant equipment for mountain warfare.

Of course, Yang Tianfeng did not forget to give the "Mountain War Tactics" to Sun Tongxuan, asking him to train the troops accordingly, and suggested that he buy more mules and donkeys to prepare for his future march into northern Henan and Taihang Mountains.

Speaking of which, mountain guerrilla warfare should be the best at the Eighth Route Army. But when it comes to detail, accuracy and systematization, we also need to refer to this book "Mountain Warfare Tactics".

Yang Tianfeng not only divided the mountains into different natural environments such as jungles, forests, thatchs, bamboos, stones, etc., and pointed out the corresponding offensive tactics and defensive position construction. Even mountain marching, surveillance, camping, assembly, coordination, and contacts have detailed analysis and discussion. At the same time, he also summarized more practical tactics and tactics based on the equipment characteristics of the New Seventh Army.

There is no leisure, but there is time. The military and government affairs of the base area have already been on the right track, and Yang Tianfeng does not need to take personal experience. Most of the time, he just needs to listen to reports, give guidance, and make suggestions.

Therefore, Yang Tianfeng no longer has to be on the front line. He can keep in touch with him by telegram or phone. He can focus on the "cruciate slant".

The so-called "crucifixion" is a weapon or method that can speed up the process of the War of Resistance. If conditions permit, Yang Tianfeng wished to build an atomic bomb and let the Japanese "taste" it first.

But in fact, the information is available, but the relevant equipment and raw materials, as well as high-end technical requirements are not possible. Therefore, he can only settle for the second best, to develop weapons of mass destruction within his ability, or to increase the power of current weapons and ammunition.

Henan is a major bauxite province, with production in Xinmi, Dengfeng, Sanmenxia and other places. Outbound bauxite purchases have begun a long time ago. The electrolytic aluminum industry has developed from scratch, from small to large, and has now achieved initial results.

Yang Tianfeng classified the aluminum industry as a military industry from the beginning, not thinking about building some aluminum basins or aluminum pots to make some money. Except for a small amount of aluminum produced, the aluminum produced is processed into aluminum alloys for weapon manufacturing, and everything else is stored to prepare for the production of more powerful ammunition.

With the development of military chemistry and coal chemical plant industry, the raw materials needed by Yang Tianfeng were gradually solved, and he first began to improve the power of current ammunition.

Using the help of the "wet method" to produce aluminum powder, this production method that came out in 1910 is to add petroleum solvent to the ball mill instead of the "dry" inert gas, and the aluminum powder produced is mixed with the solvent into a slurry. This method is simple in equipment, safe in process, and very convenient to use the product.

Then it is mixed with nitrate and other substances to make a mixed explosive with greater explosive heat and power, thereby creating an aluminum thermal bomb. This aluminum thermal explosive is all used in the filling of rockets, greatly improving the lethality.

As the aluminum thermal bomb continues to develop, it is closer to Yang Tianfeng's ultimate goal, and the cloud explosion bomb, known as the "subnuclear bomb".

Cloud explosion bombs are the latest developments in conventional ammunition blasting technology. In addition to having the killing effect of conventional ammunition fragmentation, they also have suffocation effects, powerful shock wave effects, and strong thermal radiation and electromagnetic radiation. The difficulty in development is the temperature-pressure explosives loaded inside, also known as cloud explosion agent.

Yang Tianfeng directly abandoned the first generation and the second generation of cloud explosion bomb manufacturing and jumped directly to the third generation. In addition to the information in his mind, the stricter restrictions on the first generation and the second generation of cloud explosion bombs are also the main reason. Because these two generations of cloud explosions require first spraying with equipment or throwing them by aircraft, first mixing in the air to form aerosol clouds and mist, and then a second detonation is carried out to cause a bombing.

The third generation of fuel air explosives, also known as cloud explosion agent, solves the indirect detonation problem and changes the secondary detonation to a primary detonation. This simplifies the structure of fuel air bombs, reduces costs, and improves reliability.

It is precisely because of the maturity of the third-generation cloud explosion agent that cloud explosion bombs can be made smaller and smaller, and cloud explosion rockets used by individual soldiers have appeared, and even temperature-pressure grenades.

High-energy explosives, propylene oxide/nitric acid and propylene grease, ultrafine magnesium aluminum powder, as well as modification enhancers and stabilizers, as well as strict requirements for loading density, can achieve a detonation and meet the requirements of explosion speed and explosion pressure.

Obviously, there is still a lack of materials for manufacturing cloud explosion bombs. Chemical products and high-energy explosives are complete, and ultrafine magnesium-aluminum powder is a great difficulty. The requirements for aluminum thermal bombs are much lower than those for cloud explosion bombs. To obtain ultrafine magnesium-aluminum powder, greater progress must be made in manufacturing equipment and processes before it can be achieved.

Even if the cloud explosion bomb production cannot be immediately put into production and manufacturing, the military production in the border areas has achieved incredible achievements. The weapons and equipment of the New Seventh Army have surpassed the Japanese army in some aspects, which is an indisputable fact.

In terms of long-range heavy artillery, with the continuous improvement of manufacturing technology and metal smelting, as well as the improvement of loading drugs and propellants, the maximum range of 120 heavy artillery has reached more than 7,000 meters, but the weight of the entire gun has only increased by 30 kilograms. Moreover, the development of rocket extended-range bombs has been close to success. In theory, the maximum range of rocket extended-range bombs should be more than ten kilometers when fired with 120 heavy artillery.

Yang Tianfeng is extremely good at bringing a mature weapon system to the extreme to pursue the smallest cost and maximum production speed. From ordinary heavy mortars to tapping various potentials, to rifled mortars, and finally, mortars, he is moving forward unswervingly according to this idea.

The major event that made Yang Tianfeng feel that the overall strength of the base has increased to another level was the establishment of a radar system. After Chongqing was equipped with a radar developed by experts such as Shu Xingbei, important cities such as Chengdu and Kunming and key defense areas were all launched on radars. Yang Tianfeng's request for radar was met, and it was because the National Government gave him a great face.

Of course, the radar provided is not a whole machine, but a batch of electronic components, as well as drawings that have been improved and proved successful by experts such as Shu Xingbei.

You should know that the information and drawings that Yang Tianfeng took out were certainly fine in theory. However, based on the current national situation at that time, there were many components that were not or could not be produced, such as high-power magnetrons, high-power three- and quadrupole electronic tubes.

But Shu Xingbei is worthy of being the "father of radar" in China and a genius physicist. Through several not-so-complex circuits, he played the role of a high-power three- and quadrupole electron tube, increasing the radar frequency to 500 megahertz, greatly improving the accuracy of radar search and guidance aircraft.

Of course, this is still quite different from the current 3,000 MHz radar in Britain and the miniaturized radar that can be equipped on aircraft, but it will play an extremely important role in China's war of resistance.

After getting the practical radar drawings, Yang Tianfeng admired them and felt very ashamed. Although the information and drawings he provided opened a door for the development of radar, it was still the hard work and wisdom that made the radar develop successfully.

In return, as well as admiration and trust for experts such as Shu Xingbei. While Yang Tianfeng worked overtime with engineering and technical personnel to assemble radar, he sorted out the data of high-power magnetrons, transistors, quadrones, and even transistors, and sent them to the Technical Research Office of Chongqing Military Command for reference and research by experts such as Shu Xingbei.

Whether it is manpower, material resources, financial resources, the rear area is more qualified than the border base areas, and it is more likely to successfully develop these advanced electronic components, thereby promoting the development of radar, transmitters, radio positioning and navigation technologies, and enhancing the strength of the entire War of Resistance.

After continuous and intense work, the first radar station in the border area was finally established in Mangdang Mountain. It used a relatively primitive mechanical rotating antenna to scan, and it could not conduct all-round scanning and early warnings. But with a successful start, it is just around the corner to the network.

The successful establishment of the radar station is of great help to the expected spring counter-sweeping. Because the directions of the New Seventh Army to be alert and resist are mainly in the north and east, and only scanning these two directions by radar antennas can basically meet combat needs.

With early warning and early detection of the number and even model of enemy aircraft, Yang Tianfeng can send the "Air Force" to intercept or attack with oneself and one's enemy. Not only will the air defense security of the base area be greatly improved, but it can also support ground troops and alleviate the air threat they face.

…………………

Whether people are struggling to wait, busy or leisurely, time will not slow down, nor will it stagnate. With fixed steps, time enters March 1940.

Jiang Junfeng exhaled the thick white mist and looked up at the gray sky. The snow under her feet was creaking. She seemed to hear the vague or unnamed friction sound.

"Let you be lazy, a dog traitor!" The sharp scolding interrupted Jiang Junfeng's distraction. It turned out that Wang Guihua was fighting a puppet army prisoner.

Although the time for restoration was short, people have found that the behaviors of the New Seventh Army and the Eighth Route Army were very different. The Eighth Route Army paid preferential treatment of prisoners, but the New Seventh Army was ruthless. After careful identification of a large number of puppet army prisoners, only a small number were added to the army, and the rest were used as coolies.

Xigaotou Village was assigned to more than 30 labor reforms, and the puppet army prisoners who were reborn were reborn. They had to dig ditches and repair and sweep the damaged houses... Anyway, they were just working.

All villages and towns in the newly revived villages and towns had village chiefs and towns, and they began to manage the affairs. In order to maintain public order, soldiers were stationed, with one more platoon and one less squad. They not only guarded the prisoners, but also helped each village and town to set up joint defense teams to conduct military training.

The young and middle-aged people who ran against each other and the self-defense forces gradually returned to the village. Although there were more men, Jiang Junfeng and Wang Guihua, because they were the first to join the joint defense team, even got a job and were the head and deputy head of the women's group of the village joint defense team.

Although they did not become female soldiers, Jiang Junfeng and Wang Guihua both carried guns, with their backs straight, they were confident, and they completed the assigned tasks more actively. Moreover, the joint defense team was much stronger than the original self-defense team in the village, with twenty or thirty people, but there were more than a dozen guns. In their spare time, they were led by the garrison squad, walked in the queue, practiced aiming, assassination, and practiced tactical movements, which was quite like that.

"If you don't beat or scold these dog traitors, you won't be honest." After Wang Guihua became the supervisor, she came over and talked to Jiang Junfeng.

Jiang Junfeng smiled and said, "The puppet army is hated, but now it looks very pitiful."

"Pity them?" Wang Guihua curled her lips, "Thinking about the bad things they helped the Japanese do, I want to beat them up, unconscience-free villains."

Jiang Junfeng also heard and witnessed the puppet army's evil deeds. After thinking about this, she put away her pity.

"This time, even the county town has been defeated, so you don't have to worry. You can live a peaceful life." Jiang Junfeng said with some emotion, and a thick white mist sprayed out of her mouth. "I have free time, let's go to the county town? I haven't been there for two years, right?"

"The Zhang family's fire is so fragrant!" When talking about visiting the county town, Wang Guihua swallowed hard, and her expression on her face became excited, "On February 2nd, there is a big market in the county town, let's go that day!"

Jiang Junfeng nodded vigorously, and decided to set the time. In fact, visiting the county town is one of them. The girl has another purpose, hoping to see Liu Dachuan again. The squad stationed in the village is from the company to which Liu Dachuan. From them, they learned that the company was stationed in the county village.

Hazy feelings often arise unknowingly, let alone Jiang Junfeng is so old that she sometimes thinks about her age for a while.

After taking back her hand towel, she had questions and rippled. Did Liu Dachuan keep the hand towel on her, intentionally or unintentionally? He returned it to her, was he trying to express his responsibilities or was he thinking about her? If it weren't for Liu Dachuan's help, the joint defense team had just been established, he could have been the female team leader and even sent a gun with him?

Before these questions were answered, the company where Liu Dachuan was located rushed away one night, and the two of them didn't even meet each other.

The more I thought about it, the more I became more and more entangled. Jiang Junfeng hoped to see Liu Dachuan again, or to find out or ask what was going on.

The whistle sounded, and it was time to change shifts and rest.

The puppet army prisoners were driven back to the village and were reincarnated. The food they gave them was porridge, pickles, and sorghum noodles. They could not starve to death if they were not full. This treatment was also a punishment for them.

Jiang Junfeng and Wang Guihua were chatting and laughing and going home for dinner, they met the original village elder Sun. The two greeted Lao Sun, but Lao Sun hummed and turned into a small alley.
Chapter completed!