Bai Liyan (Wei Xian) did not hesitate, and after returning to the camp, he ordered Jiang Jie to fetch another nineteen binoculars to Cao Chi's place, with a maintenance guide.

Jiang Jie returned to the station after delivering the goods, and asked quite puzzled:

"My lord, if such an excellent object as a telescope is obtained by a foreign army, if it fights with our army in the future, will it not lift a stone to shoot yourself in the foot and ask for hardship."

"That's right, it did help the vassal states in a short period of time, but in the future, our army will have a telescope to see farther, and now it's just a small test to open up some sales, so that our army can find a foothold first, and let the king have an extra piece of gold and silver income. When there are telescopes farther away in the future, they will not be able to bear them. ”

Jiang Jie's worries are not unreasonable, the emergence of the telescope [Note 1] will undoubtedly improve the battlefield vision for the present, increase the ability to perceive and judge forward-looking equipment, all countries are at peace and quiet, there is no problem when the foreign world is unanimous, in the future, the war in the south will subside, the war in various countries will resume, and the telescope will bring a lot of trouble, Bai Liyan certainly knows this truth.

The telescopes manufactured and sold this time are all monoculars of about four times, and the technology will become more and more mature in the future, and astronomical telescopes of eight times, twelve times or even higher magnifications can be manufactured. At that time, even if countries have quadruple telescopes, the effect will be greatly reduced. If you want to buy it, you have to spend money.

At this time, the barbarian general shouted and scolded outside the city for a long time, and three people came to call the battle one after another, Cao Chi Zheng ignored it, until a moment, the coalition army was full of food and drink, and the barbarian army of more than 100,000 people stood outside the city for a long time, and when he began to eat, Cao Chi was ordering the drums of war to be beaten, ready to fight.

The two armies held each other for half a day in front of the battle, and it often happened that they had food before the battle, and the soldiers all brought their own dry food bags and water bladders, which was extremely convenient for them to eat.

The 30,000 soldiers of the Baili Yannan Expeditionary Army are equipped with armed bags, which are directly attached to the chest, and the abdomen is a crossbow and arrow box, six rectangular pockets, stuffed with six pieces of roasted air-dried meat and sugar paste, and the abdomen is an arrow box bag, which can not only satisfy hunger, but also cushion the damage of arrows and swords, and give full play to the practical style of simplicity.

The drums of war in the city sounded, and the barbarian armies outside the city competed and sounded the horns. Dozens of dead men rode in front of the battle. The rhythm of the coalition army was still the same, and a thousand royal guest spirits rode out, lined up on both sides of the moat, and fifteen dead soldiers followed.

At this time, the flag at the head of the city was displayed, and the difference was indeed a little more murderous.

Jin Xuedi was eager to fight, and the car and nest car were not yet in place, so she couldn't observe the movements in the city, and she couldn't see the hidden killing opportunities in the city. All kinds of weapons and equipment of the coalition army are hidden and ready to go, just waiting for the ambush soldiers in the city to kill out of the city pass for a moment to vent the storm.

The barbarian army suffered a huge loss in the morning, and was unusually well prepared in the afternoon. Because the coalition forces were successively equipped with steel weapons that the Xianguo and Ligong factions could buy, and even the fine iron weapons captured by Jin Xuedi, the lethality was very different from before, and they could already pierce the fish scale armor that Jin Xuedi was proud of.

In Bai Liyan's eyes, Jin Xuedi's plate armor is extremely weird, different from the plate armor suits of ancient European Western knights, which are built from head to body. Jin Xuedi's plate armor only has the upper body, and the upper limbs and arms are not equipped with armor, and its upper and lower limbs are protected by more flexible cowhide armor. This greatly reduces the weight of the armor and at the same time strengthens the thickness of the upper plate armor.

Due to the cavalry charge, most of the fatal wounds are concentrated in the front of the upper body, so the strengthened upper body plate armor has extremely strong upper body defense.

If the thickness of the ancient European plate armor is two or three millimeters as the criterion, Bai Liyan even suspects that the thickness of Jin Xuedi's half-body plate armor can be five millimeters, or even more. If this is the case, it will be difficult for even a steel gun to pierce, let alone a bow and arrow, and a strong crossbow will be enough.

When I think about it, most of the tactics of the infantry armies of the vassal states in the Central Plains against the cavalry were due to the experience summed up by the southern barbarian army in the history of hundreds of years of warfare.

Although the plate armor has an excellent defensive effect, the vassal states of the Central Plains have few equipment due to lack of productivity.

First of all, it is not a matter of race, the height of the Central Plains people is still somewhat altitude, and the Chinese have declined and mixed blood due to the change of dynasties and foreign invasions.

At present, the Central Plains people are more independent and pure-bred, and the height of adult males is generally above 1.7 meters, and 1.8 meters is very common.

The fundamental reason why the Central Plains could not equip plate armor on a large scale was that iron tools were not popularized, and if they were processed in bronze, they could only increase the thickness to achieve the same defensive effect as iron products, not to mention the staggering amount of iron, and the price would be too expensive.

Second, the Central Plains is equipped with a strengthened version of the iron plate armor, specially used to equip heavy cavalry, heavy infantry, short production cycle, simple process, wear more humane than plate armor, high comfort, more economical than plate armor, moderate weight, if the metallurgical technology is further improved, the defense is not inferior to the existing plate armor of the Southern Barbarians.

Finally, the Central Plains horse breed was more suitable for the development of light cavalry for long-distance running, and the plate armor was too heavy, which seriously increased the burden on the horse, reducing endurance, speed and horse life. The Central Plains Army used horses as vehicles to transport infantry, and the super-heavy infantry undoubtedly greatly reduced this mobile force.

In the first battle of the afternoon, the brute army used a wolf's tooth lance, and after several anomalies in the morning when the blade failed to stab the coalition dead soldier to death on his horse, it was clear that the barbarians had realized that the coalition army had invested in new armor.

In the past, more than 40,000 pieces of chain mail produced and equipped by Yuke themselves, have been secretly equipped with elite legions, never put into actual combat, other vassal states in Xianguo appeared chain mail, competing to imitate, but the quality is bound to be much worse than Yuke steel chain mail.

The mace is a weapon with a front end and a mace tail, which can be used to kill with blunt weapons. In addition, the barbarian army also has long-roded copper melons, iron hammers, armor-piercing axes, etc., all of which are mainly blunt weapons, which shows that its early intelligence collection work is quite meticulous, and the weaknesses of the chain armor are well understood.

However, once the road is one foot high, the magic is one foot high, and once the chain mail was born, all the vassal states knew its disadvantages well, and successively developed and distributed metal armor with heart goggles and backing the mountain. Copper wire is riveted outside the light leather armor, so that the vital parts of the chest, abdomen, and back can withstand blunt force injuries.

In the morning, the coalition army left a hand, and as soon as the afternoon went out, everyone was equipped with a mountain back and a heart guard. In the first battle, three converged and no winner was scored. The wolf's tooth lance is behind, and it is extremely inconvenient to use, and the hammer has not been successful three times.

At this time, the royal gun also failed to pierce the barbarian plate armor, the two sides stalemate for six rounds, the royal guest was the first to break the game, a shot stabbed in the leg of the brute, and in an instant he was picked off the horse, and then turned around and counterattacked, and trampled it into a serious injury.

Bai Liyan saw it in her eyes and couldn't help but shake her head:

"This person is really stupid, he has to see the high and low head-on."

Jiang Jie asked on the side:

"Your Excellency means the barbarian general?"

"Well, the barbarian general must have been instructed by the barbarian army commander to use a mace to test whether our army's chain mail can be broken with a blunt weapon, so his attention was focused on the upper body of the royal guest, and as a result, he was stabbed in the leg like this and lost his life, how can he not be stupid. Ben Jiang pondered, that the royal guest who came out of the battle must also be an assassin, otherwise he would not have been so accurate with a clever shot. ”

As soon as the words fell, a hoarse old voice came from behind him:

"It seems that General Wei is very familiar with the royal guest......"

Bai Liyan was shocked when she heard the news:

"Shepherd, I don't know what advice my predecessors have."

"The old man just heard what General Wei said, and it seems that he has a lot to do with my royal guest."

"Oh, Wei is familiar with the envoy Wei Chiguang, Tang Zhao, Song Jie and others, and knows a little about the royal guest."

"And before that?"

Mu Yu asked, and Bai Liyan disguised and said:

"I've heard a little bit about it before." Bai Liyan found that Mu Yu was holding a telescope in his hand at this time, so he immediately changed the conversation and changed the topic and said, "I don't know what the Mu Junshi thinks about the telescope?" ”

"Very good, very good, but the old man is older, and he feels a little heavier. The old man is thinking about asking the master of the Gonggong faction to build a wooden frame for the old man to hold this thing. ”

"That being the case, if Wei has free time in the future, he can build a telescope with more tin and less copper for the herdsman."

"Huh...... Let General Wei bother, the old man is afraid that he will not live until that day......"

Mu Yu's words are depressed, as if he has seen through the ups and downs of life, giving people a feeling of infinite vicissitudes.

The words fell, and Mu Yu walked off the horse under the escort of the royal guest soldiers, as if the overall situation had been decided, and left calmly.

Just as Bailiyan was pondering, Gongliangwen came uninvited and made a polite salute:

"Hehe, I heard that Dr. Wei has a far-sighted treasure mirror today, I don't know if Dr. Wei still has this thing, and he will not hesitate to buy gold and silver, and he is willing to buy it with a lot of money."

"I don't hide it from General Gongliang, there is, but Wei only brought more than 20 in a hurry, and the remaining 40 were still transported to Yuecheng with the army, so I'm afraid there is no for the time being."

"In this case, whether General Wei can sell all the money to this general, whether it is gold and silver or military funds, General Wei can take it."

"That's ......"

Gongliangwen asked for forty pieces when he opened his mouth, obviously thinking that the telescope was expensive, and it would definitely not be much, and the more he bought, the fewer others were. After all, it's made of "crystal", and it can be made in thousands of batches? As everyone knows, in less than three months, the generals and officers above the rank of captain of the Xianjun army can be issued with telescopes, and after a few years, quadruple telescopes will be a big commodity.

Bailiyan didn't think about it, and responded to this matter in one bite, so that Song Guo and Xu Guo came to buy it one after another, but they were all bought out by Gongliangwen.

At this time, the fighting generals outside the city have been killed to the fifth formation, and unexpectedly the Jin army was defeated by the dead soldiers, and the armor-piercing axe of the barbarian will split the back of the mountain in half from behind, and simply unload a lot of force on the back of the mountain, and barely resist after cutting the chain mail.

Fortunately, the chain mail used by the coalition generals this time is all steel chain mail for the royal guests, and the barbarian armor-breaking axe has not been split, if it is the fine iron chain mail imitated by the Jin army, it is estimated that it can cut the spine.

But this is enough to choke, the dead soldiers of the Jin Kingdom immediately spurted out a mouthful of blood, and the barbarian armor-piercing axe was strong and heavy, quite violent, but it was a pity that the weight of the axe was not light, there were no fifty catties and thirty catties, and the axe handle was long, and it was difficult to recover, and when the second axe went down, the dead soldiers of the Jin Kingdom urged the war horse wildly, and fled back to the front of the battle in great embarrassment.

This time, Jin Xuedi won, and the morale soared:

"Moon God...... Moon God ......"

The barbarians slammed their swords against their shields with their swords in a deafening sound that could not even be described as madness.

[Note 1] The use of telescopes in the military field is not only to see farther and observe the details of targets farther away, but also to observe the details of targets farther away, and in the era of cold weapons and line hot weapons infantry, the emergence of telescopes means an increase in the width of the battle line and the number of exhibitors.

Before the advent of telephone and wired telegraphs, due to the constraints of wartime communication and naked vision, the maximum width of the battle line that commanders and generals at all levels could control was limited, which was also the main reason for the purpose of fighting in ancient times, the role of the battle array was not only to obtain advantages in the situation, but to facilitate the centralized mobilization and control of the army.

Before the advent of advanced communications, battlefield dispatch communications were still mainly based on verbal signals, agreed flags, horns, and drums, so people's eyesight and hearing had their own limitations, and within this range was the width and scale of the battle line that the commander could control.

Therefore, in the era of cold weapons, the scale of the formation, excellent generals can be arranged 10 to 150,000 people, and even more clever generals can organize more than 200,000 large formations with complex information measures such as complex flags, horns, drums, and orders. The advent of telescopes means that the range of vision has been broadened, and compared with hot air balloons, telescopes are more convenient to obtain and convey some information.

The advent of telescopes means that one's own side can organize a larger scale of war, and the battle line is also longer, which means that it can use a longer battle line width and more troops to achieve formation encirclement and force overwhelm on the battlefield, so as to make up for the disadvantage in technology and weapons.