In ancient times, war-fighting armies usually set off with grain and grass for several months or even more than half a year, and because of the large amount of grain and grass they bringed, they needed more people. The more people eat, the more they eat, so it is normal for the so-called half-year grain and grass to be eaten in March and April. In addition, the longer the people left home, the more it affected farming, which had a great impact on the ancient times of the agricultural state.

But if you don't do this, you can't do it, you can't go to war if you don't have enough food and grass, so it was very difficult to start a war in ancient times.

However, Li Zhi's method is different from the usual way of bringing a large amount of grain and a large number of people, the first time he carries less food, the less people will use, and the consumption will be very small. In particular, the impact on agriculture is even smaller.

However, the key lies in calculation and experience, and it is difficult to complete the arrangement of food distribution for each unit without precise computing power, and it will be difficult to achieve precise arrangements without sufficient experience.

Because a lot of times the food doesn't necessarily arrive at the time you planned, and many times it will be a day or two later, or even ten days or so.

If there is a problem other than the calculation, it will cause food shortages. Once the army runs out of food, even the most elite troops will collapse in an instant. This is also the reason why no one usually dares to bring less food.

Li Zhi actually brought about a million catties of food less, no wonder this guy was able to catch up with the Chinese army seven days late.

There was no one in the military tent, Li Shimin frowned, and called the leader who was on duty outside.

Li Shimin asked, "Where did the princess go?" ”

"What's the matter with my father looking for Jiu'er?" Li Zhi's figure appeared at the door.

Hearing Li Zhi's voice, Li Shimin suddenly felt that his momentum was not so sufficient. This is a very bad feeling, Li Shimin secretly frowned.

turned around and raised his eyes to look at Li Zhi, who looked back at his father stubbornly at this time. Father and son looked at each other like fighting cocks.

In the end, Li Shimin was defeated, he "snorted" and turned his head away. He asked in a deep voice: "Why did you bring the princess to the army, don't you know the rules of the barracks?" ”

Li Shimin stopped persecuting, and Li Zhi's attitude softened. He bowed and replied, "I know, it's just that the child doesn't worry about her staying in Chang'an alone." ”

Seeing that their father and son were fighting each other, Li Yirou hurriedly played a round and diverted the topic: "Are these all calculations that the princess helped you calculate?" ”

Li Zhi said truthfully and said, "No, Jiu'er just taught the child how to calculate, and the rest is done by the child himself." Jiu'er doesn't know how to dispatch grain and grass, so she can only help the child copy some. ”

At this time, Zhang Wenyi walked in with a food box, and when she saw everyone, she stood at the door a little confused.

Li Shimin was very embarrassed to see her, and opened his mouth to say something, but in the end he didn't say it.

Seeing this, Li Ji hurriedly said: "Jiu'er, why don't you go through the state and county governments to collect grain and husbands, but raise them yourself?" In this way, it will not only disrupt the grain collection of various states and counties, but also delay farming. ”

Zhang Wenyi blessed him, walked to the side of the strip, and opened a box. He took out a stack of manuscripts from it, handed it to Li Ji and said: "Uncle Li Ji, this is the evidence that we found when we first collected grain from the prefectures and counties to forcibly levy civilian rations and pretend to be Chang Ping, as well as the number of grain stored and actually stored in the books of Chang Ping in various prefectures and counties where we passed by, as well as the gap between the estimated output and the actual output of the states and counties along the way. ”

Li Ji didn't dare to read the manuscript, so he stretched out his hand to take it and immediately forwarded it to Li Shimin. Li Shimin took the manuscript and sat down in front of the table, and Li Zhi stepped forward and lit the oil lamp under Li Yirou's hint.

Li Shimin couldn't help but be angry when he looked at the Chinese manuscript in his hand, and he paced the tent a few times anxiously before stopping.

Zhang Wenyi took advantage of Li Shimin's inattention when they were reading the manuscript and withdrew, she really didn't know how to deal with this occasion. Two people she wanted to take revenge on when she saw it, but she couldn't, so she could only choose to avoid it.

I don't know how long I sat in the fake Chinese army tent, and Li Zhi finally walked in. Hold her little hand and pull Zhang Wenyi up from the ground.

Li Zhi whispered softly and said, "They're gone." ”

The two returned to the sleeping tent and warmed up a little, Li Zhi let go of Zhang Wenyi and sat down in front of the table and began his daily homework. Zhang Wenyi first helped him sort out the manuscript, and after basically finishing it, he took out the sewing basket from under the bed and sat on the bed to sew underwear for Li Zhi.

Feeling that the candlelight was a little dim, I got up and cut off some of the wick, and the candlelight immediately returned to brightness.

Li Zhi reached out and gently hugged Zhang Wenyi's slender waist, pulled her in front of him, and said, "Wife, I may be a little late tonight, you can sleep first." ”

Zhang Wenyi leaned over and kissed him lightly on the face, and said "um" as a promise. I turned around and walked over to pack up my needle and thread, shake off the futon, and take out a change of clothes to take a shower and rest.

At this time, Cheng Shibi knocked on the door and asked, "Has Your Highness slept?" ”

Usually don't say that at this time, that is, as long as the prince returns to the tent during the day, no one will knock on the door without an emergency.

Zhang Wenyi glanced back at Li Zhi and saw that he had already stood up and was about to speak towards the door. So he hurriedly waved his hand at him, signaling himself to deal with it, and let Li Zhi'an do his own thing.

Li Zhi smiled, nodded at Zhang Wenyi, and then turned around and sat down to continue his work. Recently, Zhang Wenyi is trying to strengthen the vigilance of the rear army, and Cheng Chubi happens to be in charge of this part, and there is a chance that he will knock on the door to find Zhang Wenyi.

Coming to the door and opening the tent door, Zhang Wenyi asked softly: "General Cheng, His Royal Highness the Crown Prince hasn't slept yet, come in and talk about something." ”

Cheng Chubi said with a grin: "I'm looking for you, sister Jiu'er, I always have a feeling of being watched recently." But there was no trace of it, and my heart was always unstable. ”

Zhang Wenyi was very concerned when she heard this. Cheng Chubi was the captain of Jin Wuwei and had been in charge of patrolling the city when he was in the capital.

When she was trained in her previous life, Zhang Wenyi knew that people have a certain ability to perceive things around them. For example, you will notice when someone is looking at you unscrupulously outside of your line of sight.

This is the ability of human perception. Ordinary people's perception ability is relatively weak, and they will only be aware of it when they are exposed to relatively strong aura radiation. Some professionals are more responsive to their professions, such as when a police officer encounters a criminal.

Cheng Chubi has always been in charge of patrolling the city, and his perception of the surreptitious peeping around must be beyond ordinary people. He felt that someone was watching, so eight or nine times out of ten there were indeed people watching.

The rear army did not have many troops, less than 10,000 people, and they were not the elite troops in the Tang army. Even the escort troops around the crown prince, the thousand people on the left and right of Qianniuwei, are not elite troops.

These people's martial arts and training are reasonable. However, they had never fought and lacked actual combat experience. The real combat strength is not comparable to that of the second-rate troops with combat experience in the Chinese army.

The main task of the rear army was to guard and escort grain and grass, and basically did not enter the front line. It is normal for combat capability to be almost poor, and this has been the case since ancient times.

Therefore, in ancient wars, many generals liked to sneak attack the opponent's grain routes and attack the places where grain was stored, all because of the weak actual combat effectiveness of the rearguard troops.

The target of this battle was Goryeo, and the final garrison of the rear army was Jeongju Castle in front. Li Zhi was responsible for the transportation of grain, grass, and ordnance to the Tang army, so it was almost impossible for the rear army to become a target for the enemy.

The enemy army cannot attack the rear army, so naturally they will not send people to snoop, so who will be the one who is secretly monitoring the rear army? As a former spy, Zhang Wenyi is naturally good at investigation and counter-investigation.

There are similarities between military reconnaissance and spy investigation, but due to the difference in nature, the means and methods of investigation will also be different. This is common knowledge in modern times, but people in ancient times did not have this kind of awareness.

If Cheng Chubi followed the reconnaissance of dealing with petty thieves and Jiangyang thieves, he would definitely not be able to find those experienced scouts.

Ja Jie is a warrior of the Six Edicts. Because he led his people to attack the Han government and was surrounded and suppressed by the official army, his people suffered heavy casualties, and he himself was wounded and captured.

Now Jaejie's family is being held in Huangzhuang, outside Chang'an, where he has been drafted into the army. Because of his bravery in battle, he has become a brigade commander in the forbidden army, and if he can be promoted to lieutenant, then his family can be pardoned.

Recently, his unit was transferred to the rear army, and Jay Jie was very dissatisfied with this, because it was difficult for them to have a chance to make meritorious contributions in this big war.

In the army, only war means meritorious service, and meritorious service has the opportunity to be promoted. Only by being promoted to lieutenant can the family get rid of the status of slaves, so Jay Jie is very unhappy.

Today, Ja Jie met the legendary princess, and he was amazed by the princess's beauty. The Yuexi clan produces beauties, but the beauties of the Yuexi clan together are not as good as the crown princess.

This was Ja Jie's opinion at the time, but he didn't dare to have any thoughts about the crown princess, but he fell in love with the female guards beside the princess.

Ja Jie was very bold, staring at the beautiful woman for a long time, causing the female guard to glare at him several times. The crown princess noticed Jay Jie and asked him to call him over.

The crown princess asked him, "What's your name?" ”

Jaja Jie replied in a less proficient Chinese: "Abu Jay"

The crown princess looked surprised, and she looked at Ja Jie carefully. Very happily asked, "Are you from the Shanyue tribe?" ”

Ja Jie didn't wonder about the princess's problem, she just wondered about the princess's attitude.

It is normal for Han Chinese to be confused about the ethnic relations of their southern minorities, but not many are friendly to them. The crown princess is apparently one of these few.

Ja Jie replied, "The last will be the Yuexi people. ”

Zhang Wenyi let out a disappointed "oh", she used to have a classmate who was a Miao girl, and the relationship between the two was very good. It's a pity that that girl was eliminated because she was too beautiful and her other grades were not satisfactory, after all, espionage work is not based on face.

Zhao Jie is the official of Jay Jie, because both of them have a "Jie" in their names, so Zhao Jie is still relatively good to him.

And because Jay Jie is extremely brave in battle, Zhao Jie also relies on him a lot. It's just that Zhao Jie didn't expect that Ja Jie, who is usually picky about women, would dare to stare at the princess's maids, and what made Zhao Jie's heart even more suffocating was that he was also seen by the crown princess.