PS: Although the grades are very bad, but it is still on the shelves, this book is the second book in history, it took a lot of effort, thank you to the students who voted for the monthly ticket and rewarded today, thank you very much!

Xu Guangqi looked at the position Yang He pointed, nodded and said, "Yes, if you want to make a difference, you must occupy Jinzhou Wei." After occupying Jinzhouwei, it can not only be used as a barrier for Ningyuan, but also prepare for the offensive against Jianyu in the future. ”

Yang He nodded, looked at the map seriously, and thought silently.

Xu Guangqi's map of Liaodong is much more detailed than the map obtained by Yang He in Wang Huazhen's mansion, showing not only the Ming Dynasty's military town in Liaodong, but also the location of the Mongolian departments.

Looking at the Mongolian Khalkha and Han tribes near Quang Ninh and Yizhou, Yang He's brows couldn't help frowning.

Seeing Yang He's brows tightened, Xu Guangqi said, "What? What's wrong? ”

Yang He nodded to the location of the two Mongolian tribes and sighed: "After Jianyu occupies Guangning, he can rely on Guangning to use troops against these two Mongolian tribes."

If Jianlu conquered these two tribes, he would have been able to obtain a large amount of supplies from the Mongols, and the strategy I just mentioned to clear the wilderness would not be as useful as I expected. If I'm not mistaken, the Jianyu are now using troops against these two tribes. ”

"How can you be sure that the Jianyu will use troops against the Mongols?" Xu Guangqi said.

Before he retreated to the Guannei, Yang He told the story of moving a large number of people back to the Guannai and setting fire to the grain and grass that had been hoarded in Youtunwei.

Finally, Yang He said: "Although Jianyu occupied Quang Ninh and the surrounding Weisho military towns, they did not get much food and materials from these places. At the end of the road, the only way to do this was to find a way from the Mongols. If Jianlu conquered these two tribes, his strength would have increased greatly. Besides, adults, please take a look. ”

As he spoke, Yang He stretched out his hand and drew a line on the map.

Xu Guangqi was shocked: "Attack Daming from the Mongolian side? ”

Yang He nodded: "After conquering these two Mongolian tribes, Jianyu can make a detour through Mongolia and enter the territory of the Ming Dynasty from elsewhere. ”

Xu Guangqi was shocked, turned around and flipped out a few maps from the bookcase, and then unfolded them one by one.

Yang He compared the map just now, pointed to a few locations, and said: "These places are all important places on the border between the Ming Dynasty and Mongolia, but they are too far away from Liaodong. Before Jianyu conquered Mongolia, he would not enter the Ming Dynasty from these places, only the nearest Xifeng Pass. It is very likely that Jianyu will enter the Ming Dynasty from here. ”

Xu Guangqi nodded: "That's right, once Jianyu conquers the Khalkha Department and the Han Department, it is very likely that he will enter the Ming Dynasty from Xifengkou, and the old man will go to the book." Heavy troops must be stationed here at Xifengkou. In case Jianyu raided Xifengkou. ”

Yang He smiled and said: "There's no need to be in such a hurry, this area is too wide, and Jianyu can't conquer such a large territory in a few years, and the humble position is just a reminder to my lord." ”

Xu Guangqi nodded silently.

After a while, Xu Guangqi suddenly said: "You just said that you sent a guerrilla to harass Jianyu, so that it is impossible for him to use troops abroad with peace of mind, what do you think should be done?" ”

Yang He rolled up the map that Xu Guangqi had just taken out, pointed to the map of Liaodong and said, "To harass Jianyu so that he can't use troops with peace of mind." It is better to have a force in the rear of Jianyu, waiting for an opportunity along the line of the Yalu River. ”

Hearing this, Xu Guangqi looked at Yang He and wondered: "Do you know that Mao Wenlong captured Zhenjiang last year?" ”

(Note: Zhenjiang in Liaodong is now Jiulian Town in Dandong.) It is five miles away from the Yalu River, and the opposite side of the river is Uiju in North Korea. ）

Yang He shook his head: "Who Mao Wenlong is, I have never heard of it. ”

Suddenly, Yang He was startled, looked at the map and said, "My lord said that Mao Wenlong captured Zhenjiang last year?" ”

Xu Guangqi nodded, and then sighed lightly: "It's a pity that Mao Wenlong's soldiers are outnumbered, and he couldn't hold it when he returned to attack Zhenjiang, and finally fled to North Korea." ”

Yang He said with a smile: "It's not okay to occupy the city behind Jianyu, how can you allow others to sleep soundly on the side of the couch?" How could Jianyu tolerate his rear being occupied by our troops? Since the guerrilla is called a guerrilla, it means that there is no fixed place to live, so that the enemy army cannot find it, and even if there is a stronghold, it is necessary to find a place where the captives have no choice but to use it as a stronghold, such as an island. ”

"That's right, with the island as a base, Jianyu is helpless." Xu Guangqi said with a smile.

Yang He pointed to the map and continued: "Lord Xu, you see, there are three islands marked here, among which Zhangzi Island is the closest to the Yalu River (this Zhangzi Island is not the Zhangzi Island in Changhai County, Dalian in the later generations), which is the most convenient to attack, but Zhangzi Island is too close to the shore, and it is easy for Jianyu to see the movement, so this place is only suitable for being a frontier, not a stronghold, and the same is true for this Deer Island next to it."

The only suitable stronghold is this Phi Island under North Korea, and Lord Xu just said that Mao Wenlong retreated to North Korea, and if Mao Wenlong can occupy Phi Island, he can attack and retreat.

It's just that I don't know where Mao Wenlong is now, if he can contact Mao Wenlong, let him occupy Phi Island, and wait for the opportunity to move, then Jianyu will not dare to move lightly. ”

Xu Guangqi looked at the map and nodded silently.

After a while, Xu Guangqi sighed: "Listening to your conversation and knowledge, it seems that a thousand generals or regimental training generals can have, have you read books?" ”

"My lord has praised him, but how can he have any insight in his humble position? He had just begun to read and write. Yang He said busily.

Xu Guangqi said with a smile: "Whether you have knowledge or not, the old man can still see it, you don't need to be humble." ”

Tapping lightly on the table, Xu Guangqi continued: "With your knowledge, it is really condescending to be a thousand generals or regimental training generals. ”

Yang He said with a smile: "My lord, what you do is actually no different from that of adults, if you say that you are doing a regiment to train your talents, then with your knowledge of adults, wouldn't it be more condescending to train here?" ”

Xu Guangqi shook his head with a smile and said, "Do you think the old man is just training soldiers?" The old man came here to make a new type of artillery. ”

"New artillery?" Yang He said in surprise when he heard this.

Xu Guangqi nodded, sighed and said: "The artillery we use now has too many shortcomings, the rate of fire is slow, the firing range is short, and the power is not great, and it really can't play much role in fighting against Jianyu."

The old man has seen the Westerners' artillery, the power is huge, far better than the Ming artillery, the old man learned the method of casting cannons from the Westerners, and he came here to cast Western artillery according to the Western law. ”

"Western artillery, can you give you a glimpse of the lowly position?" Yang He hurriedly asked.

Xu Guangqi smiled and said, "Come with me." ”

After that, he stood up and led Yang He to a workshop.

Yang He looked around, this workshop is called the workshop, and it is actually very large, about the same as a small factory. There are iron-making boilers, mold casting workshops, and other facilities.

When Yang He came in, he saw a group of craftsmen polishing the barrel.

Seeing Xu Guangqi coming in, a civil official hurriedly walked over: "Teacher, you are here." ”

Xu Guangqi nodded and smiled at the man: "Chuyang, let me introduce you to the teacher, this is Yang He, the commander of the guard battalion under the command of Luo Chengluo, who died in Guangning. ”

He said to Yang He again: "This is my student Sun Yuanhua, the word Chuyang." ”

"It turned out to be Mr. Yang Qian, fortunately, fortunately." Sun Yuanhua arched his hand.

Yang He hurriedly hugged his fists and said: "I have seen Mr. Sun, when Yang should have a word, Mr. Sun can call the word lowly, and he is called Mr. Qian, and he can't afford it." ”

"Mr. Yang Qian is polite." Sun Yuanhua said with a smile.

Xu Guangqi waved his hand and said with a smile: "Chu Yang, he has been in Liaodong for a long time at that time, and he has rich experience in actual combat, so I brought him here for the division to let him see the advantages and disadvantages of Western artillery and my Ming artillery." ”

"I see, Mr. Yang Qian, please come with me." Sun Yuanhua said busily.

"Brother Chuyang, please." Yang He said with a smile.

Sun Yuanhua was stunned when he heard this, and then smiled: "At the invitation of Brother Shi." ”

Saying that, he led the way first, and took Xu Guangqi and Yang He to a warehouse, where there were a total of six cast cannons.

Yang He walked up to the cannon and looked at it carefully for a while.

These guns are made of fine iron, the barrel is about three meters long, the wall is very thick, from the muzzle to the tail of the gun gradually thickened, there are two cylindrical lugs on both sides of the center of gravity of the gun, which can adjust the angle of fire of the gun, and the gun is also equipped with a front sight and a light door, and the caliber is about 110 mm. There is a carriage under the artillery, and with the carriage it is much easier to carry.

Yang He looked at it for a while, stepped forward and pushed the cannon hard, not wanting the artillery to move at all, and it was estimated that the weight was at least two or three thousand catties.

Judging from the structure of the artillery, this batch of artillery is indeed more refined and more reasonable than the guns in Quang Ninh City, but whether it is practical or not still needs to be tested in practice.

After thinking about it, Yang He said: "What is the effective firing distance of this artillery?" ”

Xu Guangqi and Sun Yuanhua were surprised when they heard this, and they all looked at Yang He and said, "You actually know the effective shooting range?" ”

Yang He said with a smile: "I have fought with Jianyu in Guangning City, there are a few artillery pieces in Guangning City, and those cannons can hit the projectile very far, but it is useless to hit it far, it can't hit the target at all, it can't do damage to Jianyu at all, and it can only play a role within a certain distance." ”

Xu Guangqi nodded, and suddenly asked, "By the way, you only have a few thousand people, how can you stop the Jianyu army from attacking the city in Guangning for a few days?" It can't just rely on those guns, right? ”

Yang He said with a smile: "It really relied on those artillery pieces to block the Jianyu for a few days, and bought time for the people to evacuate." ”

"Oh? How did you defend the city with artillery? Xu Guangqi hurriedly asked.

Yang He said with a smile: "The artillery of Guangning City is not much of a threat to Jianyu, we only took advantage of the time and location to give full play to the power of the artillery." ”

Immediately, Yang He told the story of how he used artillery to break the ice and use the exploded ice and the cold moat water to kill Jianyu.

Xu Guangqi and Sun Yuanhua glanced at each other, and sighed at the same time: "It seems that there is no superiority or inferiority in weapons, the key depends on the person who uses the weapon." ”

Yang He said with a smile: "It is still very useful to improve the performance of weapons, if our weapons have an advantage, then we can completely hold Quang Ninh City, but unfortunately our weapons are not superior." ”

Sun Yuanhua nodded, pointed to the artillery in front of Yang He and said: "This artillery can fight four or five miles, and the effective range is about one mile. (To be continued......)