On the sentry tower in the city, Li Guang and Dou Guangguo accompanied Liu Heng, and Yu Qing and Zhang Cang stood behind the three of them. Liu Heng looked at the planning of Hejian City, looking at the bustling crowd on the street, seven years ago, there were only 1,000 soldiers and civilians in Hejian, but now, only looking at the people in the city, there are no less than 3,000 people, and every forty or fifty miles outside the city, there are large-scale villages, thousands of miles away, and prosperous cities everywhere.

"Brother Yi, how many people are there in the river?"

"At the beginning, 100 craftsmen were relocated from the central capital, and the capital settled here, and then for three consecutive years, there were many people who sought refuge from Hu in this place, and now there are no less than 50,000 people in Hejian, but the new population is less than 2,000."

"Okay, so it seems that in less than five years, Hejian will be the place where my Han sent troops to Shan Yuting, good, good, good, my righteous brother has meritorious."

"Your Majesty, don't think about it." Zhang Cang, who was standing behind the three of them, listened to Liu Heng's words and was busy speaking.

"Oh! Zhang Cang, why not? Why not! Liu Heng's idea was considered inappropriate by Zhang Cang, and Liu Heng was secretly angry in his heart.

"Your Majesty is meticulous. At present, there are more than 1,700 people in our Han Dynasty, excluding the old and weak, women and children, only 5 million are in the prime of life, and less than 1 million can be soldiers. Although the Xiongnu had less than three million people, the old and weak were slaughtered, and there were no less than one million people in the prime of life. Comparing the two, it is not appropriate to send troops at this time. ”

"Well, in your opinion, when will you be able to send troops to eliminate the trouble?"

"It has to be two generations!"

Zhang Cang's answer was affirmative, and Liu Heng also agreed, since his father and emperor and his own accession to the throne, it has been 25 years, but the number of new people under his rule is barely maintained at 15 million, and there is a long way to go. Looking to the north from afar, when will the troubles outside the Great Wall be calmed?

"Your Majesty, don't worry, didn't General Li win more with less? It can be seen that in addition to the trouble, there is no need to wait until the people are prosperous to plan, as much as possible to breed war horses, great salt and iron, if our military horses are all like the new army in the capital, why worry about the trouble? ”

"Shaojun's words, I am very relieved, there are many generals like righteous brothers, I will not worry about trouble. However, there is a shortage of war horses and a shortage of salt and iron, when will it be able to cast into the Han Iron Armor Army? ”

"Attacking from afar and defending near is the way to use soldiers, and the minister believes that the heavy crossbow battalion can be rebuilt." Dou Guangguo lived up to Liu Heng's love, and planned and thought straight to the point.

Yes, the combat power of the heavy crossbow battalion is the trump card division in the Han Dynasty in addition to the new army, but the use of Japanese capital is much lower than that of the new army, which is indeed suitable for the development of the Han army. But why didn't such an army grow in the hands of his father? Don't act rashly, you need to discuss with your brother Haosheng during the river, and then make plans.

On the first night of Hejian, Liu Heng occupied Li Guang's residence together, and Li Guang had to live with Xu Ping. Xu Ping was inconvenient to accompany Liu Heng during the day because he had no quality and no rank, so he had to inquire with Li Guang carefully at night. After a night of detailed discussions, Xu Ping warned Li Guang that he must vigorously implement the policy of agricultural revolution in the domain of Zhongdu, and that Hejian would never dare to become a springboard for the Han to march into the Xiongnu.

After Liu Heng entered the night, he never fell asleep, half lying on Dou Yifang's side, enjoying the softness of Dou Yifang, letting Dou Yifang knead on his shoulders, but his mind drifted far away.

"Yifang, Qi'er should get married in a few years, can Yifang have a wishful girl in her heart?"

"Why did Your Majesty suddenly ask about this? Qi'er is only nine years old, but it will take a few years to marry a wife. Your Majesty is not thinking about hugging your grandson? ”

"yes, Yifang doesn't want to? I not only want to hold a grandson, but also want to add another prince. ”

A night of romance, how could Dou Yifang brush Liu Heng's mind? Naturally, tossing and turning.

After dinner, Li Guang and others came to Liu Heng's residence to say goodbye, Li Guang said hello to Liu Heng when he entered the door, Liu Heng asked where the joy came from, Li Guang said a lot of mysterious, as if he played a three-point trick to fool people.

"At the beginning of last night, I saw the cool breeze attacking, and soon I heard the dragon chanting and phoenix singing, like the sound of rain and dew, this sound sounded from the middle of the night to the east twilight, such as the spring tide hitting the shore, a wave higher than a wave, rising day by day, this is a sign of people's great prosperity, isn't this a great joy?"

"Well, it's a great joy, the land under my rule is very fertile, but I should find you a fief, lest you lose Bai Deng, and you don't even have a land for your own cultivation."

The two of them talked, but the people next to them didn't understand, Li Guang laughed at Liu Heng overnight, but Liu Heng ridiculed that Li Guang didn't even have a woman to sleep, so he wanted to step up this matter for Li Guang. When everyone heard it, they thought that Liu Heng planned to restore Li Guang's title and give Liu Heng a fief, which was envied at the moment.

Talking about children's private affairs, Li Guang is like a chick, how can Liu Heng be thick-skinned? I was secretly annoyed that Liu Heng had exposed the shortcomings, so I had to talk about water conservancy between the rivers to divert the topic.

Dou Guangguo has suffered from floods and has studied a lot of water conservancy, and has the most right to speak on this matter.

"The land between the rivers is surrounded by water on all sides, and the diversion canal runs through, which inevitably hurts the geography of the river, but the overall topography of the river is high in the north and low in the south, just from the west of the Wujia River, and the canal is opened along the coast to divert water, so as to be horizontal, the longitudinal diversion of water and the canal run through the north and south, so that the river channel can be prevented from changing, and it is also conducive to the irrigation of the whole area of the river." When Dou Guangguo was in Chang'an, he thought that he had a blueprint for water conservancy between the rivers, but he did not come to the river in person, and he did not dare to make judgments at will.

"A good water conservancy concept across the river can indeed solve the most difficult problem of building water conservancy between the rivers." Li Guang was greatly amazed by Dou Guangguo's idea, and it was immediately better.

"It's just a problem of cleaning up the silt in the remaining canals, how to solve it?" Li Guang took advantage of the situation to ask questions, thinking that many problems would be solved one by one today.

"Water conservancy maintenance has always been a problem for the imperial court, the government recruits people to repair the canal, but it is still necessary to continue to recruit people to clean up the mud every year, although the people are benefited by the canal, but they are also bitter about the annual labor." Zhang Cang is also clear about this matter, Li Guang raised this problem, Zhang Cang threw out the difficulties of the court, of course, hoping that Li Guang could solve this problem by himself, so as to save some expenses for the court.

"What Lord Zhang said is true, but this matter is not difficult for General Li." Dou Guangguo kicked back the question raised by Li Guang and let Li Guang figure it out by himself.

"If I had an idea, I wouldn't dare to alarm Your Majesty to come to Hejian in person, but Uncle Guo would give me an idea."

"The general is inherently flexible, why don't you know how to be flexible in this matter?"

"How?" Dou Guangguo's words, not only Li Guang was anxious to know the answer, but even Liu Heng and Zhang Cang were anxious to answer and asked together.

"When the general is in Baideng, he can use the people's sheep to offset taxes, and the silt between the rivers can be treated, why don't the generals repeat their old skills?"

Are these two things similar? Why didn't I find out? Dou Guangguo's words made Li Guang's mind fly, but he still couldn't figure out the connection between the two things.