Iron is relatively easy to solve for Ren Baqian, as long as the blast furnace is built and the water forging can be done, even if it is forged by manpower with a rope to pull a heavy hammer, it is more efficient than using a hammer to repeatedly beat.

As long as there is enough steel, you can also give each soldier a heart guard. The Gu warriors have strong vitality, and having a heart guard can reduce a lot of casualties without affecting their actions.

However, on the issue of food, Ren Baqian scratched his head a little.

New crops such as pumpkins, potatoes and sweet potatoes have just been popularized, and it will take at least half a year for a considerable amount to be harvested. Only then will these crops be available to civilians, reduce civilian meat consumption, and replenish the army.

There was a problem here that he had not been aware of before, that is, for the ancient warriors, especially in battlefield combat, they had to eat a lot of meat to ensure sufficient physical strength. Because the power of a warrior comes from food, and the animal meat of this world contains the most substances that can be converted into the required calories.

No matter how much pumpkin and potatoes there are, it is impossible to use them as a staple food, let alone as a staple food for the army.

If you only eat sweet potatoes and pumpkin, you don't have to do anything else for the day, you have breakfast and lunch, lunch and lunch, lunch and dinner, and dinner and supper.

In this case, there is only one way to replenish the army's food, and that is fishing.

The ancient people eat less fish, on the one hand, the ancient people are used to hunting and animal husbandry, and have no habit of fishing, on the other hand, because there are spines, it is more troublesome to eat.

And unlike livestock, fish can be sent somewhere alive, and with the weather of Dayao, it only takes a day to stink.

So unless you're along a river and there's a lack of other food, fish is generally not on the menu.

Ren Baqian has an idea, the two points that the ancient people don't like fish can actually be solved with only one method - canned fish, similar to canned sardines, even the spines are crispy after being made at high temperatures, and they can be chewed and eaten together.

This is a viable approach.

There are two options, one is glass cans, which is easy to achieve, and the glass factory is ready-made. Fill it in a glass bottle and heat it on high heat, stuff it into a cork, and seal the wax. Although the shelf life is not as long as that of vacuum cans, it is sufficient.

The disadvantage is that the transportation is more troublesome, the glass bottle is too heavy, and the cans need to be wrapped layer by layer with grass when packing, otherwise the road to Dayao will only be glass slag to the place.

The other is tinplate cans, that is, tinned iron cans, but he doesn't know whether Dayao has tin ore or not.

What's more, making tinplate cans is not only about iron and tin, but also requires many other processes.

Seeing him frowning, the empress asked, and Ren Baqian told her the idea of making canned fish.

After hearing this, the empress's nose wrinkled slightly, and she seemed to be a little happy: "This method is good." Glass cans are fine, they can be made bigger, and I've always felt that your earth's cans are too small to eat. ”

Ren Baqianyi clapped his palms: "Yes, it can be made into a glass bucket, a glass cylinder, and it is thicker, so that it is much easier to make or transport." His Majesty is really talented, and he thought of such a good solution at once, but the minister did not expect it. ”

The empress was very popular with "humming" twice in her nose, and her little face was slightly upturned.

Ren Baqian felt that the empress was getting more and more cute, so that he was always ready to kiss him.

However, he had to go back to Earth at night, and in order to prevent him from returning in a seriously injured state, Ren Baqian still gave up this tempting idea.

"My gut tells me that you seem to have some not-so-good idea just now?" the Empress glanced at him obliquely.

"Your Majesty...... Wronged!"

That night, Ren Baqian returned to Earth, recruited assistants, found someone to prepare for the exam papers, and looked up ancient forging press drawings on the Internet.

The learning progress of these ancient students, the literacy level is about the fourth grade of primary school, mathematics is the second grade of primary school, physics and chemistry are outstanding courses, and the progress is inconsistent, if you want to take some papers in school, you don't have to think about it, you have to find someone to come up with a set of test questions.

When the news of Ren Baqian looking for an assistant was noticed by the state, it was a close analysis, from gender, age, appearance, height, personality and other aspects After analysis, a few days later, Ren Baqian had an additional assistant by his side.

Looking at the Adam's apple and the gender on the data, it should be a woman, her voice and walking are a bit like a man, her appearance is more masculine, and she is flat-chested.

This is the most appropriate result after many people's analysis.

When Ren Baqian saw this candidate, he didn't know what to say, although the front one was not very beautiful, or it was seven feet **, although he nodded in his heart, he had to give up.

But this person really exceeds his own requirements, right?

And there is a name that is a man no matter how you look at it, Shen Feng.

However, let's not talk about the gender of this person first, and all other aspects are very much in line with Ren Baqian's requirements.

After any eight thousand, anything can be done

After a little thought, he hired this man, with the test papers and the street lamp.

In the past two days, he hesitated on the option of bringing street lamp equipment or salt, and bringing 600 catties of salt at a time was a drop in the bucket for Da Yao.

To ensure that more than 30 million people use salt, about 2 million catties of salt are needed to consume salt in a month, which is still according to the current situation that Dayao people's salt intake can only reach half of the average person on the earth.

If you want to reach the normal level of salt intake, you need at least 4 million catties.

If I go back to Earth once a month after taking five days of class, it is only 2,600 pounds at most, which doesn't make much sense.

Let's get the street lamp in the palace first.

I've been looking at the salt for a few days, and I'm going to see the black pool myself. If it doesn't work there, you can only go to the cloud country to grab it.

......

After the first day of the palace meeting, Dayao Chaozhong discussed for a few more days, and the matter of attacking Yun Kingdom was almost decided.

As for Great Xia, no one thought about it, anyway, it was the soldiers who came to block the water and cover the earth.

And Gu Zicheng, to everyone's surprise, was not sacrificed to the sky, but was thrown into prison, everyone in the entire embassy was put into prison, and only one person was driven back to Daxia with a letter of state.

However, everyone knew that the day of Great Xia's attack was the time when Gu Zicheng was sacrificed to the sky.

His legend, who has lived for so many years, has come to an end.

On the fourth day of discussion, news came from Pingcheng that three days ago, Dayao had increased his troops in Tiesuo Pass, Qingyang Pass, and Yunluo City for a total of 200,000, and he was ready to move.

On the same day that the empress received the questioning of the Great Xia Emperor, the reinforcement of the Great Xia army had already arrived, and they arrived at night.

In the past few days, the Northern Protectorate found that there was more cooking smoke in the three cities than before, and it was only from a high altitude that he noticed it by using the drone left by Ren Baqian.

The increase in troops in Great Xia was faster than everyone expected, which also shows that the Emperor of Great Xia, as Ren Baqian said, was just looking for an excuse to be famous, and he didn't care how the empress explained it, and war was already imperative.

But correspondingly, Da Yao didn't think to explain at all.