Zhao Yu and others left the camp and entered the camp of the former army to the north. The camp of the army should be in place according to the time, and the situation outside Yangzhou City was flat, so they set up a 'square camp' according to the canal in the west. It is said that camping by the river is a taboo, once the camp is breached, it has to fight against the water, there is a danger of being annihilated, and the Song water army currently occupies an absolute advantage, according to the river under the village can not only facilitate the supply from the waterway, and can provide convenience for the army to use water.

What is a "square camp"? In fact, it is a kind of camp that looks more square in appearance. As the main force, the central army was arranged in the center of the camp and spread out layer by layer, and the more elite vanguard and the right and left side of the rear troops were arranged on the periphery of the camp tent, so that in the case of a night attack, the main camp could buy time to restore order and counterattack the enemy.

After setting up the basic camp, it's not really the end. In ancient military camps, at least in China, there was actually a large gap between each camp tent, and in the "Weigong Military Law", it was clearly required that "the camp should be wide and not narrow and narrow." Although this arrangement made the camp large and more vulnerable to enemy attacks, it also made it easier for the army to react quickly, and the soldiers had enough space to gather and line up, and then "have to be in a unified position, and rescue is necessary in a hurry."

In addition to the well-known watchtowers, wooden fences, and horses that are necessary in military camps, trenches are also dug for camps built during long-term siege wars. On the one hand, it can be convenient for soldiers to avoid arrows in the city when attacking, and on the other hand, it can also hinder the enemy army from going out of the city to attack at night. In addition to the trenches, if the besieging side has sufficient troops and intends to besiege for a long time, then a sheep and horse wall will be built outside the barracks. This completely turns the entire barracks into a small city, and in this way, the enemy army has no chance to take advantage of it.

In addition to the army's large battalion, it is also necessary to arrange the corresponding "auxiliary battalion", that is, the outer battalion outside the main battalion. Its function is that in the event of a night attack, it can launch an attack on the enemy from the rear of the enemy in time, that is, what is said in the "Weigong Military Law" "If there is a thief in the camp at night, and the thief is engaged in battle with the camp outside the shop, that is, from the sound of drums and shouting, after striking the thief, he will take advantage of the opportunity and must be defeated." "In terms of the layout of the barracks themselves, in fact, they are also quite exquisite.

In general, in fact, a well-prepared military camp and a military camp managed by a qualified commander is basically capable of resisting enemy night attacks. But the most terrifying thing is often not only the night attack itself, because when a general decides to launch a night attack on the enemy, he will often carry out a series of secret activities including intelligence collection and buying spies against the target of the night attack.

After all, even in a solid defense, there will always be a loophole, so once the enemy catches this loophole, then what needs to be tested is not only the general's arrangement of the camp, but also the general's adaptability and command ability and luck.

"Your Majesty!" Zhao Yu and his entourage marched to the front army's tent, and Tian Zhong, the commander of the first brigade of the escort army, immediately came to greet him after receiving the report of the emperor's patrol camp, and stood up and saluted.

"I haven't rested yet, I've worked hard!" Zhao Yu followed the light in front of the big tent, saw that Tian Zhong was neatly draped, and there was mud on his boots, which was obviously not prepared temporarily, and raised his hand to return the salute.

"The enemy is on the side, and the subordinates don't dare to be careless, and they have just inspected the account!" Tian Zhong replied.

"Ni Dutong went out of the camp to attack the enemy and did not return, you temporarily took the position of the chief general, you must sit in the commander's tent, and you must not leave your post without permission!" Zhao Yu admonished.

"The commander has already explained when he left the camp, and his subordinates should keep it in mind. But Your Majesty ......," Tian Zhong said with a smile.

"Ahem......" Tian Zhong didn't finish speaking, but Zhao Yu was embarrassed and coughed a few times to cover it up.

"What? Ni Dutong intercepted the enemy reinforcements in Taizhou, but he hadn't returned to the camp yet! Wang Yinglin was extremely surprised when he heard this, and asked, "Your Majesty is personally recruiting, but there are words first, and the Queen Mother has repeatedly told Ni Dutong to always guard His Majesty's side and quickly recall him back to the camp." ”

"Governor Wang, this is a confidential matter, don't raise your voice, I'll explain later!" Zhao Hao heard his angry shouting, and hurriedly pulled his sleeve and whispered.

"Your Majesty must give the minister a reasonable explanation, otherwise don't blame the minister for the queen mother." Wang Yinglin knew that the two armies were fighting, and they would send spies to each other, and if the camp was mixed with enemy spies, it would be inappropriate for him to raise his voice, so he looked left and right before lowering his voice and saying angrily.

"In this way, Your Majesty will ask the club to camp and rest, and don't make it difficult for your subordinates!" At this time, Tian Zhong said with a smile on the side.

"Camping in the wilderness, the lord must patrol at night, this is a military rule, how can I know the law and break the law!" Zhao Yu glared and said in a deep voice. The battalion is also equipped with a patrol team, and the commander of each battalion is usually in charge, and their task is generally to check whether there are any soldiers who are absent from work, or to flee, and they are also responsible for checking whether the horses and other materials are stored safely, etc. Since these patrols were mostly elite, they were often tasked with preventing the enemy from infiltrating the camp, or as the vanguard in the event of a sudden night attack.

"As far as his subordinates know, His Majesty promised his ministers to command and dispatch the troops fifty miles away from the battlefield, so that he was able to lead the army to conquer in person. At present, the camp is only ten miles away from Yangzhou City, and it has already broken its promise. And his subordinates temporarily act as the chief general of the southern camp, and patrolling the camp is the responsibility of his subordinates, how dare he let His Majesty do it for him! Tian Zhong was not afraid, and he also pulled the emperor's pigtail with a straight face.

"You ......" Zhao Yu was choked up, but he had no choice but to whisper half pleading, half ordering, "I am the commander of the three armies, naturally I have the responsibility of inspector, of course patrolling the camp is also a matter of duty, how can it be what you can restrict, get out of the way!" ”

"Your Majesty, the commander also has an order before leaving, if His Majesty is close to the front, he will cut off the heads of his subordinates." Tian Zhongli said solemnly, and then there was a look of you looking at it.

"Alas, I wanted to be more comfortable after leaving Beijing, but I didn't expect that I was still tied up, and I didn't have half of my own!" Zhao Hao was deflated and lamented.

"Your Majesty's dragon body is a social body, and there is no room for the slightest damage, let alone danger, please move your majesty to the camp!" Wang Yinglin also realized that he had been deceived by the emperor at this time, and said with a straight face.

"That'...... Then it's always okay for me to go up and look at the watchtower! Zhao Yu still did not give up, and pointed to the watchtower used by the Chinese army to dispatch the whole army.

"This ...... Okay, but Your Majesty must return to the camp as soon as he sees it! Wang Yinglin saw the pleading look on the little emperor's face, hesitated for a moment, but then relented and agreed.

"Okay, good, I'll go back to the camp as soon as I see it, and I won't lose my words!" Although Zhao Yu is not willing, he also knows that he will accept it when he sees it, otherwise it will be difficult to come up with it in the future.

The watchtower is seven or eight feet high, and he climbed the watchtower accompanied by Tan Fei and Tian Zhong and several others, and he looked at it from afar. In the night full of light pollution in the previous life, the night may not be so dark, but at this time, despite the starry sky, the visibility at night can be said to be quite low, and it often provides a great concealment effect for the enemy to attack the camp.

Zhao Hao looked west, and could see the mast lights on the canal flickering, and the lights in the west camp were lit. Looking to the north, you can see the lights on the head of Yangzhou ten miles away, connecting the lights in a line, illuminating the city up and down. However, the lights in his camp were sparse, but a bonfire was lit every twenty steps in front of the trench around the camp, illuminating the front of the village, and the men and horses had nowhere to hide.

To prepare for night attacks, the first and most important thing is to do a good job of early warning at night, so a good sentry is very important. At the same time, in addition to the patrol team, there are also equipped with special night watchmen, Zhao Yu knows that in the darkness in front of the village a hundred steps away there are also an array of 'listeners', each group of two, one change and one replacement, monitoring the enemy's situation, once someone explores the camp, they will suddenly rise up and kill the enemy detective.

In addition, there are scouts who "each lead five horses, on all sides of the camp, and go to the camp ten miles away to play in preparation for the extraordinary." When the sentry spotted the enemy approaching, he said, "If there is an emergency, gallop to report to the army." "At the same time, the barracks that are attacked should beat the drum to send the alarm, so that the location of the attack can be transmitted in time, and at the same time, other camps can be warned to strengthen their vigilance and send reinforcements. The drumming could not be stopped until the end of the enemy attack.

But even so, when the army camps at night, it is often necessary to set up "dog auxiliaries", that is, military dogs to assist the sentinels. On the one hand, dogs' excellent sense of smell can allow them to detect enemies earlier than humans in the dark night, or in unfamiliar terrain environments, there is another important reason, that is, humans are affected by the biological clock in the dark night, and it is often difficult to concentrate, and this is much better for dogs.

However, the role of Zhao Yu's dog on the battlefield is not just used to guard and sentry, in fact, in ancient times, there are also examples of dogs fighting side by side with soldiers. In ancient Roman times, in addition to letting dogs assist the sentry guards, the Romans would also let these dogs take the lead in battle to disrupt the enemy's formation.

As far as Zhao Yu knew, the Mongols also raised a 'fierce dog army' in their conquests, and followed them in the southern and northern wars. The first to form the Fierce Dog Legion to fight in the south and north were the Dangxiang people living in the northern part of Tibet. During Genghis Khan's expedition to Greenwich, the party community was recruited by Genghis Khan and marched towards Europa as the vanguard of the northern route.

The "Fierce Dog Legion" in this army "led more than 50,000 soldiers, all of them were Tibetan mastiffs, they used the enemy's corpses as food and drink, overwhelming, swept all the way, and established a merit that made Genghis Khan amazed and envied, and he sighed: After a hundred battles, the majestic man, the giant mastiff helped me, and the god of war of heaven helped me!"

However, Zhao Yu felt fortunate that the Tibetan mastiff must be a beast, although well-trained, after the fierce dog army hit Europa, but after the attack, the victorious army and the defeated army were scattered, and they could not all return to the team after the war. So it was not used on the battlefield of the Song Dynasty, otherwise he would have to think of a way to deal with this dog army......