"Okay, then the pharmacist will prepare the people, and now that King Yan is here, I think I can resist some time." Pen "Fun" Pavilion www.biquge.info.

"Tang Dog on the city tower listens to me, now our Jieli Khan has gathered 200,000 troops, and finally give you a few days to think about it, hurry up and open the gate, lest I wait for my army to break through and kill you without leaving a piece of armor!"

Outside Juyong Pass, it has been besieged by countless Turkic armies since the day before yesterday.

Speaking of this Juyongguan, it is in Changping District, which is more than 50 kilometers away from Youzhou City. Juyongguan got its name, from the Qin Dynasty, according to legend, when Qin Shi Huang built the Great Wall, the prisoners, soldiers and forcibly recruited people resided here, taking the meaning of "migrating to the Yongfu". In the Han Dynasty, it was called Juyong Pass, the Three Kingdoms era was called Xiguan, and the Northern Qi Dynasty was changed to pay the pass. The situation of Juyongguan is dangerous, connecting Lulong and Jieshi in the east, and Taihang Mountain and Changshan in the west, which is really dangerous in the world. Since ancient times, it has been a battleground for soldiers. It has two passes in the north and south, the south is called "Nankou", and the north is called "Juyong Pass".

The most important thing is that Li You's Junnan Mountain is just behind this Juyong Pass, Juyong Pass, as long as you turn over the continuous mountains, it is the Junnan Mountain where Li You is located. And Li You, more than 10,000 refugees, fled outside Juyong Pass.

~~

"The Turks who came this time claim to have 200,000, and our current garrison is less than 10,000." In Li Lingkui's meeting hall, Li Lingkui paced back and forth a little anxiously.

"Don't worry, my lord, I think Your Majesty has already received our urgency, and it will be a few days before a large army comes. Are we going to recruit soldiers everywhere right now? "Su Xiao's idea is very simple, as long as he drags Xue Yantuo's army, as long as he waits for His Majesty's army to arrive, everything will be solved naturally.

"Well, you will pass down the order and order each county of Zhichong Prefecture to recruit a thousand soldiers. The governor of Pontus will go to Juyong Pass to defend the city himself! By the way, you let Youlin pick out 5,000 soldiers! Forget it, you don't need to go, I'll go over in person. ”

Today's Tang Dynasty implements the government military system, which is one of the ancient Chinese military systems. The most important feature of this system is the integration of soldiers and peasants. In peacetime, the government soldiers were farmers who cultivated the land, trained in agricultural gaps, and fought in the army in wartime. The government soldiers are equipped with their own weapons and horses to participate in the war, and there are Zhichong prefectures responsible for the selection and training of government soldiers throughout the country.

~~

"Childe, can you bring some popsicles for my mother-in-law too?" Jun Nanshan, looking at Li You, who was about to return to the base, Mu Niang held a popsicle in her hand, and opened her mouth a little embarrassed.

"Hey, what's wrong with this, by the way, now we're not only your mother, everyone has two popsicles to eat every day." Now the base is under construction, and the current weather is really hot, so Li You ordered people to distribute popsicles every day, of course, this popsicle is not purchased in modern times, with the number of people in the Yanshan base today, it is a small 4,000 people, two per person per day, that is more than 8,000 popsicles. Now the popsicles eaten at the Yanshan base are all made by themselves, because the generators are seriously insufficient now, so Li You did not equip them with refrigerators, and the things they make popsicles are actually very old and very effective, yes, it is saltpeter ice.

Said this saltpeter. It is a white bitter crystal, is a mineral, likes to stay at the foot of the wall at low temperatures, the color is like frost, so it is also called "wall frost". When saltpeter is dissolved in water, it absorbs a lot of heat, causing the water to cool down and even freeze. Li You uses this property of saltpeter to make popsicles not only in this hot summer, but also in ice drinks. It is to dissolve the sugar and a little spice in the water and put the water in the jar. Take a large plate, fill the dish with water, place the jar in the pan water, and constantly add saltpeter to the plate, as a result, the water in the jar freezes. Take a bite, it's cold and sweet, and it freezes straight into your stomach. This kind of cold and cold water will be continuously made by special responsible people in the Yanshan base to drink for the group of people who work in this hot day.

The most important point is that after the saltpeter is dissolved into water, it can be reused by cooling crystallization or evaporation crystallization.

In fact, the earliest ice refrigerated drink originated at the end of the Tang Dynasty, when people mined a large amount of saltpeter in the production of gunpowder, and accidentally found that it would absorb heat and reduce the temperature when dissolved in water. The water placed in the basin will freeze. Pour some water in a large basin, then put it in a small basin, pour a basin of water into the small basin, and then pour saltpeter into the large basin, and the water in the small basin will freeze. Ancient ice factories used this method to make ice.

"My lord! A team of military masters in armor came outside, saying they were looking for you! ”

Just as Li You was about to return to the Yanshan base, a villager's voice sounded outside the room.

"Youlin!" Immediately afterwards, a voice that Li You was very familiar with came.

"Oh, father. How did you get here! Li You was speechless, if he was one step faster, I am afraid that he would have arrived at the base by now.

"Huh? Father-in-law, why are you dressed like this" Li You went out of the room, but he was surprised to see Li Lingkui wearing armor at this time. I'm hurrying towards my room.

"Well, the Turkic dog has come to attack my Tang Dynasty again, so I will go to defend the city for my father. Youlin, my father came to tell you this time that you should select 5,000 soldiers. Then you will follow your father to defend the city! ”

Li Lingkui's words suddenly made Li You stunned, the Turks are coming? I went, I didn't know anything.

"Five thousand centaurs? But I'm old and sick, and the sturdy ones have been sent out into the mountains to mine in order to build the bicycle. "In fact, it is still okay to say that the current Junnanshan wants to pick out 5,000 people and horses, but if this is really singled out, I am afraid that this place will be a waste in the future, and there will be a bunch of real old people like sick and disabled, what is the use.

"Huh? Oh, I remember, but state affairs are important, so you will order people to go and inform those people to come back first, and then wait until the Zhichong Prefecture has gathered the soldiers and horses from each county, and you will go with the army to defend against the enemy! Li Lingkui also remembered that he had indeed asked Li You to make the bicycle. Originally, I planned to let Li You follow him directly, but in this way, I can only have more than 5,000 people when I go this time.

"Well, okay, the boy will go and inform, and when he has gathered all the people, he will go to support immediately."

Li Lingkui came and went quickly, and took about 5,000 standing troops all the way towards Juyong Pass.

"Mu Niang, don't you think this is a good opportunity!" After Li Lingkui left, he opened his mouth and curled the corners of his mouth at Mu Niang beside him.

(To be continued.) ）