Tana said yes, and before she could walk out the door, she saw Ulan push the door open again.

The two exchanged pleasantries a little, and then went out to report on the work; There is no way, although they are two women, they both hold the position of head of the regiment and are very busy.

"Second uncle, Camp Commander Zhang just came to me." Ulan came to Hu Guang, who had returned to his seat, and said seriously.

Battalion Commander Zhang is Blacksmith Zhang, the battalion commander of the craftsman battalion, which is under the jurisdiction of the logistics regiment of Ulan.

Originally, the craftsman battalion was still directly managed by Hu Guang, but after arriving in Daqingshan, the craftsman battalion was busy building weapons, including firearms, and had no manpower left to develop things, so there was no need for Hu Guanglai to worry about it, because he was too busy.

At this time, as soon as he heard Wulan say, Hu Guang's face was not good-looking, and he asked with a helpless expression: "But you are nagging about raw materials again?" ”

Seeing that the wise and martial second uncle actually showed a helpless expression, Ulan couldn't help but smile and said, "Yes, he said that according to the current progress, the iron material is only enough for about ten days." In addition, the nitrate field ......"

"What's wrong with the nitrate?" When Hu Guang heard this, his expression tightened and he hurriedly asked.

After all, iron can still be recycled, gunpowder is a pure consumable, if there is a problem with the nitrate, then it will be a big trouble.

The nitrate called the heavenly army is no longer enough, and the nitrate can only be made by using the soil method. Regarding this, the Han people who have a little knowledge in the Kannai understand it. Therefore, Hu Guang also has great expectations for the nitrate.

After all, among the three major raw materials of black powder, needless to say, carbon is in Daqingshan, how much is needed. When the sulfur came, it was stored in sufficient quantities to sustain it for a while. Even if it's almost gone, you can send a cavalry unit to the mine in the pass to get it.

Only this nitrate, there is no source, so you can only rely on the nitrate. There was an accident in this nitrate. The firearms on which the heavenly army relied the most had to be played.

Ulan's expression didn't seem to be serious, which made Hu Guang breathe a sigh of relief, but as soon as she spoke, Hu Guang stood up directly from his seat. I only heard Ulan say: "It seems that the temperature is too low, and the nitrate yield obtained in the nitrate field is much lower than expected, and it is expected to be three times less." ”

By this time, the weather had warmed up. However, the temperature is still in the single digits, and the nitrifying bacteria in the nitrate field need to be around 25 degrees Celsius to be the optimal breeding temperature.

Hu Guang's brows furrowed when he heard this, how can the production of this nitrate be so low, how can black powder continue to be supplied?

As he was about to speak, a smile appeared on Ulan's face and said: "But according to the information provided by a herdsman who was arrested a few days ago, it is said that there is a saltpeter mine in Dalat, which is under the jurisdiction of Wanhu in Ordos, and the mining area is very ......."

"What?" Hu Guang's mood was simply up and down, and he confirmed loudly.

Ulan smiled and took the trouble to say it again.

In fact. In the places where the ethnic minorities outside the Guanxi are located, there has always been no shortage of saltpeter. Many saltpeter mines discovered in later generations are distributed in Xinjiang, Qinghai, Gansu, Mongolia and other places, but there are few sulfur mines in these places. Therefore, the Ming Dynasty strictly prohibited the export of sulfur.

The miscanthus mine in Dalat was proved to be the world's largest miscanthus mine in later generations. Although it was impossible to mine on a large scale at this time at the end of the Ming Dynasty, it was enough anyway if it was only called for the Heavenly Army.

After Hu Guang confirmed. Immediately approached the grassland map hanging on the wall on one side, and busily went to check the location of Dalat. Ulan followed. She is a Mongolian, and with a slight glance, she directly stretched out her finger to Hu Guang.

When Hu Guang saw it, his excitement immediately cooled down again. Because the location of this saltpeter mine is a little far away from the eagle's beak ditch, there is also a Meidaizhao in the middle. That grassland. According to the information currently available, it should be Bu Shitu's territory.

If the Heavenly Army sends people over now, it will be a bit difficult, unless it defeats Mei Dai Zhao and annihilates some of Bu Shitu's men and horses. So that the heavenly army is fully capable of competing with Bu Shitu's men and horses in the grassland. And to achieve this result, it is necessary to launch the Meidai Zhao campaign according to the predetermined plan.

Seeing that the cooked duck couldn't be eaten, Hu Guang felt a little uncomfortable. He stared at Dalat and was silent.

Wulan naturally knew the plan and significance of the battle of Meidaizhao, and she had never believed in the Yellow Sect, so she went to Fugu with Hu Kuan very early. raised Hu Guang to grow up, although he was the second uncle, he was like a child, and he couldn't see Hu Guang distressed.

Seeing that Hu Guang was silent, she hesitated slightly, and then suggested: "Second uncle, in fact, Meidaizhao also has a lot of iron, saltpeter and other materials. If we lay it down, we can get a lot of supplements at once. ”

Mei Dai Zhao existed for nearly 50 years or so, and has been revered by Altan Khan and later rulers and tribal chiefs, and worship is indispensable. After so many years of accumulation, it is not an exaggeration to say that this is a gold mine.

Hu Guang listened and moved his gaze to the location of Mei Dai Zhao on the map, and nodded after looking at it for a while.

Anyway, the scheduled battle of Meidai Zhao is divided into two steps, and when the materials such as iron and nitrate are about the same, the first step will be started to fight Meidai Zhao. There is still some time to prepare after obtaining the supplies, after all, whether it is Lin Dan Khan or Bu Shitu getting the news, it will take time to make up their minds to attack the eagle's beak ditch.

Thinking of this, Hu Guang made up his mind. Convey this matter to Hu Kuan and Lakshen, the two leaders of the field regiment, so that they can know in their hearts.

One thing was temporarily solved, but Hu Guang immediately encountered another problem. If it is not resolved, it is likely to affect the second step of the Meidai Zhao campaign. After a few days without progress, Hu Guang had to hold another meeting at the battalion level and above to solve the problem by brainstorming.

"Everyone, if there is no internal supply to Lin Dan Khan or Bu Shitu, I am afraid it will be difficult for them to make up their minds and concentrate the elite to attack our eagle's beak ditch. But this internal response is really impossible to find at the moment. ”

Hu Guang's opening remarks were straight to the point and explained the problems encountered first.

It turned out that the herdsmen captured by the Heavenly Army, no matter which force they belonged to, were actually herdsmen at the bottom and herdsmen on the fringes of the forces. Because of this, their number is small, and they have the opportunity to be captured by the heavenly army quietly.

In this way, after these people were screened, they could not find an ideal internal response, which made him hate the Heavenly Army and would risk being the internal response of Lin Dan Khan or Bu Shitu.

In the original plan, such a candidate was, for example, the bodyguards of several Ezhe who were killed like last time. Such a person will definitely be submissive on the surface, and he will definitely be Lin Dan Khan's internal response when he has the opportunity.

When Hu Guang threw out the question, Lakshen waved his hand and said, "It's not difficult, just hit Ezhe again." ”

Hu Guang was speechless when he heard this, this Ezhe is the son of Lin Dan Khan, the successor of the Khan throne in the future, and the small forces hiding in Daqing Mountain can fight if they say they can fight? (To be continued......)

PS: Thank you rabit2011, lonely and lonely 55 for your support, thank you!