Five young officers dressed in the coats of the German army in World War II walked in, and the first one stood up to Bai Zaixiang and gave a military salute touching the brim of his hat, and the generals of Youyang knew that this was the etiquette inside Li Jing's Nanao Town.

"In Xia Li Yu, the first-class trainee staff officer of the Nanao Town Headquarters, these four are second-class trainee staff officers. The leader of the military observer group this time, I have seen Bai Shuai", and after speaking, he respectfully handed a letter to Bai Zaixiang with both hands. The other four stood up and saluted at the same time, all four of them were in unison, and their boots bumped into each other with the same sound. Although there are only four people, they are very imposing. The generals of Youyang, who had been to Ma'anshan, still remembered the queue, discipline, and training of the battalion soldiers in Nanao Town. Very envious.

Bai Zaixiang smiled kindly, took the letter, opened it, and looked at it carefully. Li Jing's approximate meaning is that the Youyang native soldiers bought a lot of shields, triangular cross guns, and more than 500 pairs of plate armor (Youyang is relatively poor, and the sand gold in his hands is limited, and Li Jing only accepts silver and sand gold). These people can guide the use of these weapons and equipment, Li Jing called after-sales service, although Bai Zaixiang didn't understand this word very well, but he still knew the general meaning, in addition, these people also came to the battlefield to see it first, and understand the situation of Jiannu in advance. At the same time, it can be used as a consultant to provide advice, which can be regarded as mutual benefit.

"I have read Zhengyi's letter, welcome all staff officers to come to my Youyang military camp, inside the barracks, you can walk around casually, you can see, what needs to go directly to Tianyi, if necessary, you can also directly ask me, about the after-sales service of equipment use, you can find Tianyi if you find any problems, you can also come to me directly, I will arrange. Have you brought your own guards, if not, I will send a team of personal soldiers to provide protection for you, and if you need horses, you can also let Tianyi arrange them. ”

"Thank you Bai Shuai, the personnel and horses are not needed, we are one person and three horses. We brought a sentry musketeer, a sentry artillery battalion, and a sentry cavalry (the Arabian horses that Li Jing had just improvised and procured using trench mirrors). There are also 250 auxiliary soldiers, 30 four-wheeled carriages, food and baggage are sufficient, Bai Shuai can arrange a camp for us, we mainly come to observe the battle situation with Jiannu, as well as the geographical situation of Liaodong, every day I will send a report to Li Shuai, need to use the express system of the post station. ”

"That's no problem, Tianyi, you go and say hello to the post station, where do you want to choose the campsite, the safest is near my Chinese army's big tent." Bai Zaixiang knew that Li Jing's battalion was composed of 120 people per sentry, and these battalions plus auxiliary soldiers exceeded 600 people. It is equivalent to more than one battalion in Youyang. There is no problem with self-preservation.

The 4,000 battalions of Youyang were organized into eight battalions. Ran Tianyun, Ran Tianyun, Bai Zaiying, Bai Zaiyun, and Bai Bangming each led a battalion, and Bai Zaixiang personally led two battalions of the Chinese army and one battalion of personal soldiers. The pro-military camp is Bai Zaixiang's daughter, Bai Baiyi is in charge.

"Thank you Bai Shuai for your concern and support for the work of the lower officials, the lower officials are grateful, if you can, the lower officials want to camp in front of the junction of your army and the Mao soldiers, and there is a small small inverted triangle of small rocky mountains by the river. The side facing the river is steep, ten meters high, and the highest mountain top there is more than forty meters high, so you can see the whole battlefield, and it is relatively safe to have two armies on both wings. ”

"It's not impossible for you to set up there, there is an observation post there, just remove it and hand it over to you, but there are more than 50 meters of river in front, if you fight, there may be Jiannu attacking there, can you hold it."

"We brought two three-pounder infantry guns, one six-pounder gun, one twelve-pounder gun, one twenty-four-pounder naval gun, and one thirty-six-pounder naval gun. I would like to test the performance of these weapons on the battlefield by the way. These cannons can not only hold this high ground, but also support your army and Mao soldiers when needed. ”

"Okay, Tianyi, you are responsible for contacting, if you need anything that can be solved, try to solve it, and if you can't solve it, come to me." Bai Zaixiang said boldly. She saw Li Jing's strength very clearly, and she also had the intention of making friends in her heart, and this time she sent a battalion of people to inspect and study, which also enhanced the strength of her side, which was beneficial and harmless. It is also good to arrange it at the junction to avoid inconvenience with each other. After all, a battalion of men and horses is not so easy to defeat, and it is convenient to send people over to rescue if there is danger.

In the afternoon, someone came to report to the generals of the Chinese army's big tent. As soon as these men entered the high ground, they began to build camps. First, connect the carriages end to end on both sides of the slope, and put down the wooden planks covered with steel plates to form a barrier. Barbed wire was then erected around the outside of the camp, thistles were spread in the snow and on the river in the front, and carefully buried with snow.

Behind the mountain, use an iron drill to punch holes, pour gunpowder to blow up gravel and crush the earth, put it into a sack, and then use the sack to build a chest wall on the steep cliff in front of it. The auxiliaries began to punch holes with gunpowder, blast them, and crush them with stone rollers to level a flat ground that could be used to build a camp.

Directly at the top of the hill with gunpowder, thirty-six-pounder naval guns, twenty-four-pounder naval guns, twelve pounder guns, six-pounder guns and two three-pounder guns were arranged side by side ten meters above the steep cliff of the front from high to low.

Rows of tents were set up with two layers of canvas and cotton in between, toilets were built, and a well was drilled. I don't know what the principle is, but you can use a handle to keep pressing back and forth to get out of the water. In order to prevent freezing, tents were also set up outside.

A small iron stove of cast iron was installed in the tent of the barracks, placed in the middle of the tent, rolled into a small chimney with a thin steel plate of 0.2 mm, assembled and protruded from the hole reserved at the top of the tent, and the smoke was discharged directly to the outside. The fuel is a cylindrical lump of coal called honeycomb coal.

Inside the tent are lightweight folding wire camp beds. It's very small and light to fold. The top is illuminated by a gas lamp with a glass cover. Simple steel stand canvas wardrobe.

In the middle of the camp, there is even a cotton tent that is a bathroom, in which a layer of canvas and a layer of oilcloth is propped up with portable folding steel brackets, a small bath of about nine square meters, and a large pot of boiling water outside, poured into it to bathe. There are three coal stoves in it that are very hot. You can bake dry quickly after taking a bath to avoid catching a cold. This bath can serve up to 10 people at a time. Fifteen minutes per person, plus a quarter of an hour to change the water. It can bathe 720 people in one day and one night. Enough to ensure the cleanliness of all personnel.

The kitchen is a specially designed four-wheeled carriage that can provide hot food and boiling water at all times. Shake a handle to even press the noodles, cook and stir-fry with a large detachable combined steel stand plus an inverted copper bell-shaped steel marching pot.

Ten sappers were even digging a tunnel in the back hill with gunpowder blasting, ready to store gunpowder and ammunition inside.

The camp was set up in three days, and then all but a few sentries guarded the camp, and everyone was sent out, with a sapper shovel, to cut down the trees on the other side of the river. Completely clear the shooting line. After the trees are trimmed, the branches are chopped up with a fire axe for fuel, and the trunks are sawn into segments for construction of fortifications.

Wooden huts were also built for the pack horses that pulled the carts, the oxen that pulled the cannons, the Arab war horses for the cavalry, and some donkeys and mules, and made walls of logs, canvas, and iron nails around them, and the top was topped with wooden poles, and covered with canvas, bark, and pine branches. The roof is paved and the stone is pressed. In this way, the shack will not be ventilated to prevent the livestock from freezing to death.

The river in front of the Hupi Post Station is a tributary of the Hunhe River, and the ice surface is frozen more than a meter thick, and it is completely possible to walk through the car. In particular, the heavy thirty-six-pounder gun, which weighed three tons. If there is no ice surface, it is very difficult to carry. In the future, their supplies were also transported from Yingkou in this way, and they were transported as much as possible before the opening of the river, because the climate began to warm up in another month.

The carpenters in the camp built a five-story wooden watchtower on the top of the hill with these undried timbers directly with large iron nails. The height is about 15 meters. Coupled with the height of 478 meters at the top of the mountain, the total height reaches more than 60 meters. Large monoculars were mounted on it. On a clear day, you can see the plains on the opposite bank until you enter the mountains. This height is enough for reconnaissance of the enemy.

If a person stands on the shore and observes, when the height of the eye is 1.5 m above sea level, he can see 25.32 km. If you climb up to an observation deck, you can see 590.80 km when your eyes are 35 meters above sea level.

Human eyesight is different, normal people's eyesight, photopic distance is 25cm, 4km away from the scenery is not easy to see, more than 500m, there is a blurred image of the scene, the distance is shortened to 250~270m, you can see the outline of the scene, if you want to identify the species of flowers and trees, it should be shortened to dozens of meters.

There is a limit to the range of human vision, and the average distance to see a fighter jet in the air is about 8 kilometers, which is currently a generally accepted (and not explicitly defined) value. According to tests, the resolution of people with normal vision is about 1 in 2,000 to 1 in 5,000.

Although the telescope is still relatively rudimentary, it is no problem to see clearly the snowfield more than 20 kilometers from the east bank of the river to the mountains on a clear day at this altitude, and you can even see the barracks of Jiannu in the mountain pass fifty miles away.

In the end, the sappers and auxiliary soldiers dug holes with iron drills along the center line of the frozen river ice, buried tinplate iron buckets filled with 50 catties of medicine bags inside, and covered them with ice and snow. The rope that pulls the fire pipe is buried with snow and extends to the barracks on this side. In the defense area of the Mao soldiers and the Youyang native soldiers, special personnel were arranged to be responsible for pulling the fire. If a large number of Jiannu men and horses rush over and approach their own river, they will set fire. So many medicine packs are enough to blast the ice and cut off the front and back contact, and the Youyang Tubing and Mao Bing can take advantage of the situation to kill and eliminate this part of the isolated Jiannu.

Wang Gui, the commander of Mao Bing, and Youyang Zhu, who were very excited after visiting in the future, even praised Li Yu for their good arrangement. The medicine packs buried in this section were enough to blow up the six-mile-long river, and Jiannu bypassed them and killed these people long ago.

Bai Zaixiang was interested in barbed wire, and asked if it was possible to put barbed wire around the entire camp.