On the two laptops on the table are flashing with fluorescent screens, one on the left is a suitcase-style military laptop, and on the right is a Surface Book, where Yang Ming is setting up his "AFATDS" Advanced Field Artillery Tactical Data System (AFATDS).

The Afaz system's topographic data uses NASA's ASTER GDEM topographic data, covering all land areas between 83 degrees north and 83 degrees south, reaching 99% of the Earth's land surface, with a data volume of about 90 gigabytes.

Although the earth's surface has changed greatly over the past 300 years due to natural factors such as floods and earthquakes, as well as social factors such as urban and rural construction, Afaz's topographic data is still useful, at least much more accurate than ignoring topographic data and simply using the curvature of the earth to calculate the trajectory.

The topographic data of the Afaz system in the military laptop is only superimposed on the satellite map of Afghanistan, and what Yang Ming has to do now is to import the satellite map data of North China into the system. The data source for the satellite map is Goole Eatrh's offline data packet. In the past, when I was in China, there was a time when Google Eatrh often couldn't connect for some reason, and offline data packages were popular on the Internet, Yang Ming often played Google Eatrh during that time, and also downloaded one, which now comes in handy. With the cooperation of satellite maps, the topographic data of the Afaz system can make the calibration of ballistic targets more intuitive and convenient.

Importing a large amount of data is not a labor-saving job, Yang Ming tinkered intently, and didn't notice that a girl in a goose-yellow short jacket carried a food box into the room.

"General......" The girl in the goose-yellow short jacket called Yang Ming with a smile.

"Oh......" Yang Ming was startled, turned around and asked the girl, "Yingmei, it's you." What's the matter? ”

"Grandma Yu asked the slave maid to send white fungus soup to the general, ...... so late, Grandma Yu is still nagging about the general......"

Ying Mei said as he opened the food box, took out the white fungus lotus seed soup in the white porcelain bowl, and held it in front of Yang Ming.

After Yang Ming and Xiao Xi returned home, Xu Ying sorted out a set of rooms in the West Wing and let Xiao Wei move in. This maid named Yingmei was chosen by Xiao Xi himself, Xiao Xi originally wanted to choose Linglong, but Xu Ying did not agree, the reason was that Linglong wanted to accompany Wang Xiaogongzi to read and write.

"Oh, it's almost there." Yang Ming took the lotus seed soup and scooped it into his mouth, feeling sweet and smooth, and his mouth was full of relish.

"General, what is this?" Ying Mei stared at the laptop on the table, a pair of big eyes blinking curiously.

"This ......," Yang Ming pondered his words, "This is a magic weapon, you don't understand it......"

"Grandma Yu has been here a few times, and when she saw that the general was busy outside, she didn't dare to come in and disturb the general......" The screen was full of English, and Yingmei naturally didn't understand, so she didn't look at it much, and continued to say good things for Xiao Xi.

The sun came out, and the morning mist gradually dissipated. Outside the Guangqu Gate of Beijing City, tens of thousands of Golden Horse infantry are arrayed, the golden sunlight shines on the armor of people and horses, and the scales shine layer by layer, looking from the city wall, like a sparkling dark ocean.

On a loess slope two miles away from the city wall, dozens of horsemen wearing iron armor and horsemen riding iron-clad war horses surrounded by the Huanglong umbrella. The middle-aged man on horseback was dressed in fine iron armor, draped in a yellow robe, and his figure looked a little blessed, he was the second Great Khan of Later Jin - Tiancong Khan Aixin Gioro Huang Taiji, the eighth son of Qing Taizu Nurhachi, Chinese New Year's Eve and seven years old this year.

※The Bayala Battalion is the guard camp of the Houjin Banner Lord, and it is the pro-army of the Banner Lord.

Since he was a teenager, Huang Taiji often hunted and fought with his father and brother, and was skilled in riding and shooting. In the first year of the Later Jin Mandate of Heaven (the forty-fourth year of Wanli in the Ming Dynasty, 1616), Nurhachi established the Dajin State (known as the Later Jin in history), called the Great Khan, and appointed the second son Daishan as the Great Beyler, the nephew Amin as the second Beyler, the fifth son Mang Gurtai as the third Beyler, and the eighth son Huang Taiji as the fourth Beyler, called the Four Beylers. In the third year of the Mandate of Heaven (the forty-sixth year of Wanli in the Ming Dynasty, 1618), Nurhachi made up his mind to launch an attack on the Ming Dynasty, but the specific action was not decided, and Huang Taiji offered a plan, he proposed to fight Fushun first, "Fushun is where I enter and exit, and must take it first", and suggested taking advantage of the opportunity of the Ming Dynasty to defend the city guerrilla Li Yongfang to open the horse market from April 8 to 25, and send 50 people to pretend to be horse merchants, divided into five groups, and enter the city as the city, and then he personally led 5,000 soldiers to the city at night. Nurhachi gladly accepted his suggestion, and on April 13 he pledged to conquer the Ming Dynasty with the "Seven Hatreds", which resulted in a great victory. The Battle of Fushun was the first major battle between the Later Jin Dynasty and the Ming Dynasty, which had a far-reaching impact on the later development of the Later Jin Dynasty.

After the death of Nurhachi in the 11th year of the Mandate of Heaven (1626), Huang Taiji was elected to inherit the throne of Khan, and the following year was changed to the first year of Tiancong. After Huang Taiji ascended the throne, he carried out drastic feudal reforms to strengthen centralized power; Strategically, it is necessary to conquer Korea and Monan Mongolia first, so as to relieve the strategic policy of attacking and Ming; For the Ming Dynasty, the Han people's proposal to demote officials was adopted, and the "policy of peace and self-consolidation" was established, and the Han civil officials and military generals were reused, aiming to enter the customs and seize the Central Plains. In history, he was proclaimed emperor in Shengjing (now Shenyang) in the twelfth year of Chongzhen (1636), the founding name of the Qing Dynasty, changed to Chongde, and was the founding emperor of the Qing Dynasty.

Huang Taiji himself has a good cultural literacy and actively promotes measures to revitalize culture and education. In the third year of Tiancong (the second year of Chongzhen of the Ming Dynasty, 1629), he first proposed "to fight the chaos with martial arts, and to support peace with culture and education", he emphasized the importance of the development of culture and education to govern the country, and opened the imperial examination in that year, selected 200 Manchu, Han and Mongolian students, and stipulated that from the sixth year of Tiancong (the fifth year of Chongzhen of the Ming Dynasty, 1632), the children of the ministers of Van Beile were under the age of fifteen and over eight years old, and they were all ordered to study.

He changed his father Nurhachi's policy of massacring Han Chinese, emphasizing leniency towards the Han people in Liaodong, "the Han officials and Han people in our country have selfish desires to abscond in the past, and those who are in the past who are in spies and correspondents, although they raise their heads, they will ignore everything", and promoted the integration of Manchu and Han, "all those who try criminals and send official duties will not cause similarities and differences", and it is forbidden for Manchus to disturb Han people, and "those who take the cattle, sheep, chickens, and dolphins of Zhuangmin (referring to Han people) without permission are guilty." Huang Taiji repeatedly instructed his subordinates that "all those who belong to the old and the new should be gracious", regarded the act of deliberately harassing the Han people as a "bad foundation", and stipulated that "the officials who govern the Han people shall be raised according to the goodness of their upbringing" as the assessment criterion of "distinguishing the good and the bad", and repeatedly declared that "those who come to surrender in the future, if the beylors kill them knowingly, they will be fined ten households; Belle did not know it, but the little people were reckless and the murderers were put to death, and his wife was a slave. ”

This time, Huang Taiji led the Eight Banners and the Mongolian army to invade the Central Plains, and he repeatedly declared that "the Ming people who surrendered, that is, our people, and those who plundered the property of the surrendered places will be killed without forgiveness, and those who kill the surrendered people without permission will be punished." Before the second Bel Amin withdrew to Shenyang in June of the third year of Chongzhen, he slaughtered the city of Qian'an and Yongping, and Huang Taiji was extremely angry about this, and declared Amin a national thief, believing that he abandoned Yongping and slaughtered the people in the city because he was "jealous, so he wanted to destroy the foundation", and imprisoned him to death.

Huang Taiji reigned for 17 years, during his reign, he developed production, strengthened troops, and constantly fought against the Ming Dynasty, laying a solid foundation for the rapid expansion of the Qing Dynasty into the Central Plains. In the sixth year of Chongde (1642), Huang Taiji captured Hong Chengchou, the governor of the Ming Dynasty, in the Battle of Songjin, since then the elite outside the Ming Dynasty has been lost, the Ningjin defense line has completely collapsed, and the Qing army has become an inevitable trend. In the sixteenth year of Chongzhen (1643), Huang Taiji died suddenly on the eve of the Qing army's entry into the customs, and failed to see the realization of the ideal of the Qing Dynasty entering the Central Plains. After his death, the temple was called Taizong, and the name should be Tianxingguo, Hongde, Zhangwukuan, Wenren, Shengrui, filial piety, Jingmin, Zhaoding, Longdao, Xiangongwen Emperor, buried in Shenyang Zhaoling, and his ninth son Fulin ascended the throne, that is, the Shunzhi Emperor of the Qing Dynasty.

At this moment, this is the second time that Huang Taiji has come to the city of Beijing. More than a month ago, on November 20, Huang Taiji led the Houjin army to bypass Jichuan and approach the city of Beijing, and fought against the Ming troops fighting outside the city, and defeated all opponents. After eliminating the field troops of the Ming Dynasty, Huang Taiji did not rush to attack the city of Beijing, but turned to plundering the Gyeonggi region, and cut off the Ming Dynasty's Cao transportation in Zhangjiawan, Tongzhou, plundering a large amount of grain and silver, and burning more than 1,000 Cao ships. After firmly controlling the ground of Gyeonggi, now he has returned to the city of Beijing with his army, and he is going to try the behemoth of the capital of the Ming Dynasty.

"The weight of the tripod seems to be questionable." Huang Taiji's sharp and indifferent gaze looked at the tall and majestic Beijing City in the distance, as if he wanted to see the young emperor of the Ming Dynasty in the Forbidden City through the thick city walls. In his opinion, the nineteen-year-old Emperor of the Ming Dynasty was not his opponent in terms of political ability, military ability, or even sophistication and knowledge. But behind this young emperor is the Ming Dynasty's thousands of miles of rivers and mountains and more than 100 million people, although the huge empire of the Ming Dynasty has decayed, but the huge volume is not comparable to his 300,000 Eight Banners soldiers and civilians. He knew that even if he could attack Beijing City this time, he would not be able to eat it, let alone digest it.

Today he is not here to attack the city, but to say goodbye, Beijing City, it is not yet time to take it. In Huang Taiji's arms, he carried a letter to Chongzhen, in which he proposed peace to Chongzhen in a humble tone.

"Father Khan, the son is willing to lead the army to attack the city first." Hauge on the side bowed his head and said, with a hint of uneasiness in his firm tone.

Huang Taiji looked at his eldest son, and couldn't help but feel a wave of anger in his heart. Hauge was satisfied with his previous performance, and he also had high hopes for Hauge, and even had the idea of making him the prince. However, a few days ago, Haoge inexplicably lost Shunyi City, and fled back with only more than 20 relatives, not only losing a large amount of grain and grass materials accumulated in the city, but also demolishing thousands of elite soldiers. In a fit of rage, Huang Taiji stripped Hauge's title of Baylor on the spot, and wanted to push him out and behead him, but he gave up after everyone's plea.

Many of Hauge's brothers, and even Huang Taiji's own brothers, were jealous of Hauge's possible succession. This time, Haoge fled back in disgrace, and all kinds of unfavorable words came out, saying that Haoge was greedy for women, searched for beautiful women in the city, and spent all night looking for pleasure and ignoring military affairs, so that he was exploited by the Ming army, and the counterattack was successful. All kinds of rumors are vivid. These rumors reached Huang Taiji's ears, which made him even more angry, but he was helpless, and his dissatisfaction with Haoge in his heart was even worse.

"The idiots in the city take it like a palm, but its territory is still strong, and it can be defeated overnight. It is easy to get, but it is difficult to defend, it is better to train the brigade with simple soldiers and wait for the destiny of heaven. Huang Taiji glanced at Haoge and said coldly.

Hauge shuddered. The "idiot in the city" mentioned by Huang Taiji certainly refers to Chongzhen, but in Haoge's ears, he is talking about himself.

"That's what Father Khan said." Hauge bowed his head and stopped talking, adding a little resentment to his brothers who had fallen into the well.

There was a trumpet sound in the distance, and hundreds of Jin soldiers pushed dozens of carts and rushed towards the city wall.

It's this Mang Gurtai again! Without waiting for the order, he began to attack the city, Huang Taiji's brows furrowed, and a cold light flashed in his eyes. After his accession to the throne, a series of measures strengthened the imperial power, greatly weakened the rights of the major bailes, and caused strong dissatisfaction and backlash among the bailes, and the three bailes were the most prominent one.

The other Houjin troops saw that Mang Gurtai's Zhenglan Banner troops had been dispatched, and they also shouted and pushed the cart and began to charge, only the white flag led by Dolgon did not move, still waiting for Huang Taiji's order.

The "楯" of the car is "shield", that is, the shield car, so the car has the nickname of the brand car. According to the Ming Fan Jingwen's "The Book of War Defense", the shield on the Eight Banners car is made of thick wooden boards covered with cowhide and iron sheets, and the car made of this way "does not move when the small bricks and stones hit, and the big bricks and stones roll down, and the firewood is not burned", which has a strong defensive power, in short, it is the earthen tank of that era.

The Hongyi cannon on the city wall was fired, and with a loud boom, iron bullets sprayed into the Houjin army that was swarming up. A chariot was shattered, and the Houjin soldiers who followed behind the chariot were blown to pieces, and more than a dozen Houjin soldiers were killed and wounded. An iron bullet broke the leg of a Houjin soldier, but it was still sharp, bouncing on the ground, rushing into another group of chariot soldiers, and smashing into one of the Houjin soldiers, who spewed a bloody arrow from his mouth and fell to the ground with a muffled grunt.

It took time to reload the Hongyi cannons, and the chariots of the Houjin soldiers took advantage of this gap to accelerate their charge, and hundreds of chariots rushed to the front of the trenches of the city wall. Under the cover of the chariot, the Houjin soldiers bent their bows and shot a rain of arrows at the city wall, and many of the defenders on the city were hit by arrows, and some of the defenders who were shot fell on the city wall, and they were immediately carried down and replaced by new sergeants.

The range of the Hongyi cannon is long, and the Houjin car that is close to the front of the trench can not be bombarded, at this time, the invincible general of the Ming army, the Franc machine gun turned down the angle and opened fire, and the barrage accompanied by the smoke of gunpowder came to the car, and the Houjin soldiers who were shooting bows and arrows were shot in large quantities, and they threw down the bows and arrows in their hands, rolling and wailing on the ground.

The invincible general Franc cannon is an iron breech-loading smoothbore gun, and the whole cannon is composed of a barrel, a belly, and a sub-gun. When using, first put a wooden block under the gun body to adjust the pitch angle of the gun body, and then embed the sub-gun into the belly of the gun, aim at the target, and fire. After firing a round, it is replaced with a sub-cannon, which can be reloaded in turn, so it is also called "sub-cannon". Each shot is loaded with 500 small lead pellets, which have a wide impact area and great lethal power. However, limited to the level of manufacturing technology at that time, the gap between the sub-cannon and the belly of the Franc cannon was large, resulting in the leakage of gunpowder gas, so its firing range was relatively close, and it generally had a killing effect within 100 steps.

Driven by the swords and guns of the Houjin soldiers, tens of thousands of prisoners Ding Zhuang rushed to the edge of the trench with sandbags on their shoulders, threw them into the trench under the fire of the Franco, and then turned around and ran back quickly. The Francos on the walls of the city continued to open fire, knocking down large numbers of captives.

A second wave of prisoners carrying sandbags rushed up again, and the Hongyi cannons on the city walls opened fire again, and the iron bullets danced in the crowd, and everywhere they passed, there was chaos. Some of the captives threw sandbags off their shoulders and fled, only to be hacked to death by the Houjin soldiers who oversaw the battle, while many more rushed forward like walking corpses until they reached the trench, where they fell in large numbers under the barrage of Franco's cannons.

The trench was quickly filled, and the Houjin soldiers, carrying the ladders, began to charge.

"Those who first arrive in the city will be rewarded with a future." Huang Taiji, who was watching the battle on horseback, ordered lightly.

Futures is a kind of merit point system of the Manchu Qing Dynasty. The future of the early Qing Dynasty was very valuable, and the extremely dangerous special feats such as capturing the city, breaking the formation, beheading the general (enemy commander) before the battle, completing the established task of holding the enemy surrounded by the absolute superiority, and savior after breaking off were worth half or a future, and half a future could make ordinary bannermen enter the sequence of members of the hereditary ruling group.