Dajue acupoint, one every ten feet, open three feet at the lower part of the wall, and the outer mouth is slightly larger. On the transshipment city, there shall be a tower, a cistern, a pool, and a basin for holding water. If the enemy soldiers climb the city, and the soldiers who are tasked with the attack cannot attack in time, the fighters will be delayed and dealt with according to military law.

The general method is to set up a barrier made of wooden piles outside the city, the barrier is ten feet away from the city wall, ten feet high, and the wooden piles used to make the barrier are cut down, and the method is that the trees are uprooted regardless of size, sawn into a ten foot long section, and buried deeply and tightly at a distance from each other, so that people can pull them out.

Every 20 steps set a 'kill', and in the middle of the kill, a 'mustache' is set up, and the mustache is ten feet thick. There were two doors, and the doors were five feet wide. The stake barrier should be buried shallowly, not solidly, so that it can be easily pulled out. On the city facing the wooden stake barrier, set up 'pounding' accordingly.

Hanging fires over the city is called hanging fire. Install a hook for hanging fire equipment every four feet, build a stove in five steps, and stack the charcoal at the stove door. When all the enemies have entered, he orders the fire to be burned, and then the hanging fire is thrown downward. Place the combat equipment in such a way that the width corresponds to the range of the enemy's attack. A suspended fire was set up between every two combat equipment, and a soldier was sent to stand beside it, waiting for the sound of the drums to strike, and as soon as the drums sounded, they would be ignited and thrown down together. If the enemy avoids the hanging fire and attacks again, the hanging fire will be thrown down again, and so on, the enemy will be exhausted and eventually lead his troops to flee. As soon as the enemy retreated, he ordered our death squads to pursue and crush the enemy from the holes on the right and left, but strictly ordered the warriors and generals to act according to the drums of the city, both from the city and from the city. In the middle of the night, the drums and shouts on the three watch city walls will be beaten, and the enemy soldiers will be suspicious, and the ambush soldiers can take the opportunity to break through the enemy camp and capture and kill the enemy leader. However, they should use white clothes as military uniforms, and communicate with each other by slogans.

And when the enemy came from the east, he offered sacrifices to the gods on the altar of the east, eight feet high and eight feet wide and deep. Eight old men presided over the ceremony of sacrificing the green flag, and arranged eight oriental gods and eight archers eight feet high, and each archer shot eight arrows; The commander's garment shall be blue, and the chicken shall be a sacrifice. And when the enemy came from the south, he greeted the gods on the altar of the south, which was seven feet high and six feet wide and six feet deep. Seven old men were arranged to preside over the ceremony of sacrificing the red flag; Prepare seven seven-foot-tall southern red gods, seven archers, each firing seven arrows; The general's uniform must be red, and dogs should be used as sacrifices. And when the enemy came from the west, he met the altar on the west side, and the altar was nine feet high, and nine feet wide and deep. Nine old men presided over the ceremony of sacrificing the white flag; Nine feet tall Western White Gods, nine archers each fire nine arrows; The general's uniform must be white, and sheep must be used as sacrifices. And when the enemy came from the north, he offered sacrifices to the gods on the altar of the north, which was six feet high and six feet wide and six feet deep. Six elderly people presided over the ceremony of worshipping the black flag; Six feet tall Northern Black Gods, each of the six archers issued six arrows; The generals' uniforms were all black, and pigs were used as sacrifices. From all the famous ancestral halls outside, some of the magic shamans prayed to the gods and offered sacrifices to them.

Those who have the hope of the qi, the big general, the small general, the past, the incoming, the defeat and other types of differences, can understand these 'qi' other content can predict success, failure, auspiciousness and danger. Find out all the sorcerers, physicians, and soothsayers who have the expertise, and according to their specialty, provide them with medicines, provide housing, and make proper accommodations.

The place where the shaman lives must be close to the place where the land god is worshipped, and he must be honored as a god. The sorcerer and the soothsayer reported the truth to the guard, so that the lord of the city could only know the result of his victory, and not let anyone else know; If a sorcerer goes in and out to create and spread rumors, causing panic among the officials and the people, it is necessary to be cautious and secretly reconnoitre, and punish the sorcerer and soothsayer who make these rumors, and the crime is unforgivable.

Gather virtuous doctors and various technicians with expertise and give them the corresponding ranks. The butcher is selected, and the brewer is assigned to work in the kitchen, and he is also given a job rank.

In general, the regulations of defending the city, the county division was responsible for inspecting the fortress, inspecting the city defense of the river ditch, blocking the enemy's roads, and repairing the city walls. All officials, great and small, were to provide for the food and money needed for the war, and all those who had the skill to do what they were good at. Sima sent soldiers to guard the gate according to the city defense situation, two people were in charge of the right door of the city gate, two people were in charge of the left door, and the four of them were in charge of the responsibility of opening and closing the city gate, and a hundred soldiers with armor sat on the city gate.

At each step of the wall, there was a soldier with armor, a soldier with a halberd, and three helpers. Assign a captain every five steps, arrange a chief every ten steps, and appoint a chief in 100 steps. On each side of the city there was a great commander; In the center of the city was commanded by a general. In this way, each level has a leader and its own duties. At the stairs of the upper city wall, full-time officers and soldiers were assigned to guard it. Transfer the documents and books to the appropriate place, and select the urgent and important parts to report. Sergeants also have their own duties.

Wherever arrows can reach outside the city, the walls must be torn down so that they are not used as fortifications by the enemy. Within thirty miles, all firewood, grass and trees were brought into the city. Dogs, pigs, chickens, eat the meat, collect its bones to make a sauce, and those with gastrointestinal diseases can use it to cure diseases. Wherever an arrow could reach outside the city, all the piles of firewood and grass and houses were to be plastered with mud. After dusk, he ordered the people in the city to keep the dogs and horses on a leash, and to keep them firmly on a leash. In the dead of night, when they hear the sound of drums, they shout in unison, which is used to suppress the arrogance of the enemy, and at the same time can stabilize their own people's hearts and minds, so as not to disturb the common people.

Before the war, Taizhu and Taishiguan had to pay homage to the surrounding mountains and rivers and temples before withdrawing. The princes wore white sacrificial clothes and swore in the Taimiao. After the oath was over, the princes retired to eat. He temporarily had to live in the house on the right side of the Zhongtai Temple, and Taizhu and Taishi temporarily lived in the Shemiao. The other hundred officials served their duties, so they went to the temple, beat the drum at the temple gate, planted a flag on the right side of the door, and inserted a banner on the left, and the left and right corners of the door were arranged with inscriptions, and the soldiers fired three arrows and prayed for victory, and all the soldiers were ready. After the ceremony, go down to the temple and wait outside to wait on the city gate platform to watch the scene on the outskirts of the city. Then he ordered the drums to be beaten, and after a while he ascended to the gate, and from the right side of the gate he fired arrows made of basil worm into the four directions of the heavens and the earth, and the soldier with the spear stabbed the spear three times into the air, and then the archers fired it into the air; From the left side of the door, the military academy first performs a winning sorcery called 'waving', and then the wood is thrown down with stones. Taizhu, Taishi, and the ceremonial officials make sacrifices to the temple, and then cover the pottery retorts used as rice for the sacrifices.

This is how to communicate with flags when defending a city. Use the cyan flag when you need wood, the red flag when you need fireworks, the yellow flag when you need firewood, the white flag when you need stones, the black flag when you need water, the flag painted with fungus when you need food, the flag with goshawks when you need to mobilize death squads, the tiger flag when you need to mobilize the strongest fighters, the double rabbit flag when you recruit surplus soldiers, the child flag when you recruit five boys, the sister flag when you recruit women, the dragon flag when you need bows and arrows, and the bird flag when you need war horses. Where there is a substance to be requisitioned and the flag does not have an existing symbol, the corresponding flag is hung according to the shape and meaning of the substance required. The flag was hung on the city by the quartermaster to collect money and goods, and once the military supplies were met, the flag should be lowered immediately.

According to the law of defending the city, there must be sufficient accumulation of stones, firewood, thatch, reeds, timber, charcoal, sand, pines and cypresses, pongai, hemp stalks, grease, copper and iron, and grain; Wells and cooking stoves have proper places, and important collateral of the enemy, such as hostages, have a place to live. Each branch of the armed forces has its own banner; The dispatch of troops will have their own characteristics; There are rules and regulations in the law, and the severity of the law is determined according to the actual situation. The officials who preside over the inspection of the roads also have their own designated areas.

Each pavilion has its own flag, the flag pole is two feet five feet long, the silk is one zhang five feet long, half a width is half a width, a total of six flags. When the enemy attacked outside the moat, the defenders opposite the enemy's attack were beaten three times and a flag was hoisted; When the enemy attacked the middle of the moat, he beat the drum five times and hung three flags; When the enemy entered the first wall outside the city, he beat the drum six times and hung four flags; When the enemy penetrates deep under the city walls, he beats the drum eight times and hangs six flags; When the enemy climbed halfway up the wall, the drums beat non-stop. If it is at night, torches are raised instead of flags, and the number of torches is the same as the number of flags hung during the day. If the enemy retreats by attacking, the number of flags hoisted remains the same as the number when the enemy attacked, but the drums are not beaten.

The general in the city hung the banner of the four gates, which was fifty feet high, and the banners of the guards of the four gates, east, west, north and south, were each forty feet high, followed by thirty feet of the first class, and twenty-five feet high of the first class, twenty feet and fifteen feet in order. However, the height of the flag is not less than fifteen feet.

The officers, soldiers, men and women of the city were distinguished by the badges on their clothes. The insignia of the city officials was worn on the back of their coats, and the insignia of the soldiers was worn on their hats or turbans; The badges of the officials under the city were worn on the shoulders of their coats, as were the soldiers. The badge of the left army is worn on the left shoulder, the badge of the right army is worn on the right shoulder, and the badge of the Chinese army is worn on the chest of the shirt, and each person has a micro badge. The Chinese army has a trumpet and drum, and each drum is struck three to ten times, and the rest of the officials with drums should beat the drum to respond to the middle army drum trumpet carefully according to the ranking. Failure to beat the drum on time when it should be done in response, and indiscriminate drumming when it is not appropriate to respond with drumming, shall be punished with the person in charge.

The road should be thirty paces wide, and there are two wells on each of the avenues under the city, and iron cans are set up next to the wells. A barrier was erected on the outside of the road, and every thirty steps were built into a circle, one foot high. Public toilets were built with walls more than 12 feet high. The streets and alleys in the city that are connected to the avenue must be equipped with doors, and each sect is guarded by two people, and no passage is allowed without a pass, and those who do not obey orders will be beheaded.

When the commanders of the garrison went out three times to repel the enemy's soldiers, the commander of the garrison ordered them to go to the official office to receive food, and gave them large banners, and gave them cities or goods to hundreds of households, and put the banners of rewards in their camps, so that people would know that they had made meritorious deeds, and such banners were called "someone's flags." The inner width of the grid is 25 steps, the outer width is 10 steps, and the length is determined according to the terrain. It is necessary to command the soldiers according to the fatwa, know how to command the advance and backward, to the left and the right, and to allow the tired soldiers to take turns to recuperate.

The way to build a nation starts with the use of geographical conditions, which can be used to succeed, and if geographical conditions cannot be used, they will be fruitless. The same is true of man, who cannot be pacified without preparation in advance, and who cannot be of one mind and whose responsibility lies with the generals and officials; All rewards and punishments should be determined in the name of the prince. It is necessary to send envoys many times to comfort and reward the soldiers who defend the border cities, border passes, and border fortresses against barbarians and toilers, and report which town commanders have more or less military expenditures, which terrain should be defended by troops, and which generals should always be adequately armed and equipped. For the prefectures, counties and cities in the border areas, it is necessary to use less timber according to the fact that the trees do not grow well, the land is not reclaimed to save food, and the mulberry trees should be cut down less where there are no big houses and thatched huts. The economy is rich, and the common people pay attention to eating and drinking. The city is to be built with low walls and stacks, the walls are to be equipped with weapons and equipment, the chiefs, soldiers, and cooks of the city are to be stationed in their respective camps in the city, one cook for every ten people, and one keeper in charge of the letter certificates, to supervise and guard the gates, and no one is allowed to stay next to the gatekeepers and those who are in charge of the police, and those who do not obey orders may be killed. Whenever the enemy attacked, the city was more than a thousand zhang in a large city, and the enemy must be met on the outskirts of the city, and the defending side would be advantageous; Small and medium-sized cities with less than 1,000 feet of cities should not go out of the city to meet the enemy, but they should respond flexibly according to the number of enemies, and these are the general principles of defending the city. If it is not mentioned above, it will be dealt with according to mental wisdom and personnel planning. All the defenders of the city should be able to annihilate the enemy quickly, and if they delay for a long time, wait until the enemy's reinforcements arrive, which is not the way to defend the city. Only by understanding these truths can we defend the city.

Another method of defending the city was that when the enemy was a hundred miles away from the city, the generals defending the city should gather all the officials, petty officers, and relatives of the rich and noble to live in the official palace, and carefully send reliable subordinates to defend them, and the more cautious the secrecy, the better. When the enemy begins to climb the city wall and storm it, the barracks of the generals defending the city must not be less than 500 people, and the generals of the four gates of the east, west, south and north must choose those who have made military merits and have received honors and official positions for the service of the king and the state, and each of them will lead 100 troops. If the generals of each gate were to guard the other gates, they had to build a tall building on the other gate, and send soldiers who were good at archery to guard it, and soldiers lined up on the low walls and walls of the city to guard them one by one. Let the children of your family guard it.

Every fifty paces a 'partition' for storing weapons was set up, and it was divided into eight sections according to the streets and alleys of the city, each of which set up a leader, and each leader led four people to patrol the main roads and alleys in the city. The elderly, young people, and other people in the streets and alleys who did not participate in the defense of the city and those who managed the entry and exit of their property were divided into four sections according to the streets and alleys, and each department had a leader, so that they could check those who did not come and go at the prescribed time or had abnormal behaviors among the passers-by, so as to discover and arrest the spies in time. If you take the leader of more than four soldiers to carry out the task of defending the city, the general must give a letter as a certificate; When the general sent people to inspect the guards, they took the letter given by the general, and if the letter did not match the letter and the slogan did not correspond, the officials above the rank of uncle and chief would all detain such people and report to the general. Those who should be seized but not seized, and who are let go by the leaders or soldiers, shall be beheaded. Whoever commits a crime of capital or higher shall be arrested by their parents, wives, children, and brothers.

Of the men who defended the city, six out of ten men had bows and arrows, and the other four had other weapons. The women, the elderly, and the young men who participated in the defense each carried a spear.