Lulong to Baitan is a river valley road.

"The water is southeast and southeast, and the water is combined. The water flows out of Lulongsaisi and flows south into the water. "In the Western Han Dynasty, the Lulongsai Road was built along the flat Weishui Valley Road. Tracing the water valley and climbing over the Baitan Mountain, you can reach the Baitan City.

It coincided with a major drought, and the water flow was small. The wide valley road can be used for several cars in parallel.

The city of Baitan is more than 400 miles northwest of Lulongsai. Ride along the valley. When a tributary of the river blocked the way, he ordered craftsmen to cut down wood and build a bridge. Straight into the sandalwood mountains.

All the way to open the road in the mountains, and build bridges in the water. Half a month later, they arrived at Baitan City.

"The wet water is southeast again, and the water flow is meandering, which is called the Qu River. The southeast flow path is the ancient city of Baitan County, Yuyang. ”

The city of white sandalwood is surrounded by mountains and rivers. The arch guard wants to charge. It is the former Han Baitan County Governor's Office. It has been abandoned for 200 years. Although many of the castles have collapsed, the outline is still there.

After entering the city, set up camp. The first thing Liu Bei did was to order someone to open several carriages and take out the 'skillful shovel' modeled after the military universal shovel used in later generations. According to the traces of the ravines outside the castle, the moat was re-excavated.

Thousands of skillful shovels were distributed. Under the guidance of the good craftsmen of the Hou Mansion and the skilled workers of Lou Sang, thousands of hardcover Han Hu Zhuang Ding sweated like rain. Day and night, digging earth and digging ditches. The excavated earth was then used to build and repair the walls.

Xu Rong led five hundred dragon riders under his command, with white sandalwood as the axis, and swept the surrounding hundreds of miles. If you encounter a small group of Xianbei, surround and kill it. If you encounter most of the Xianbei, you will return to the report as soon as possible.

Liu Bei sent scouts to change into Xianbei clothes, secretly traveled west, and entered the grassland on the dam. Arrive at the foot of Yin Mountain and search for traces of the royal court.

As mentioned before, White Sandalwood is a fortress city. Dual-use. Wartime garrison, peacetime tuntian. It is a square city with a circumference of three miles. Rammed earth to build a wall, the residual height is more than two feet. There are urn cities, houses, military camps, arsenals, and granary ruins in the city. All broken are not available.

The cavalry under his command was divided into several routes.

One protects Lu Long behind him - Bai Tan, the main road of military rations. One was scattered within a radius of 100 miles, intercepting and killing a small group of Xianbei in the south, and exploring the movements of the three major Xianbei departments. There is also a way, disguised, secretly arrived at the foot of Yin Mountain, and established a secret stronghold. Search for traces of the royal court.

The rest of the majestic ones dug ditches and built walls, and renovated the white sandalwood city.

Liu Bei came here to carry hundreds of truckloads of grain and grass. Enough for a month. If it is to be sustained, the grain route is crucial. Five days later, the first batch of grain and grass arrived from Louronse.

The land in the city also began to be cleared. Liu Bei divided into several areas. Build stables, pastures, arsenals, granaries.

Half a month later, the water was released through the canal. The moat, which was three feet wide and more than one foot deep, began to store water. The urn city and the suspension bridge were completed immediately after. All the hands began to ram the earth to build the wall. Looking at the city that changed several times a day, as well as the continuous accumulation of grain and grass, Liu Bei finally breathed a sigh of relief.

Speaking of which, Liu Bei sent troops outside the fortress this time, and he was completely waiting for the rabbit. Strategic assumptions are based on speculation. If the plot can be successful, except for God's favor. It's God bless the Yanhan. Fortunately, many details are also being carried out according to Liu Bei's vision.

In August, Wuhuan Captain Xia Yu, Breaking Xianbei Zhonglang General Tian Yan, and Xiongnu Zhonglang General Zang Min each led more than 10,000 cavalry people, respectively from Gaoliu, Yunzhong, and Yanmen, and attacked Xianbei in three ways.

The three generals are all cavalry, and they must be smashed. It's the second one.

If the Han soldiers pointed out, the Xianbei royal court pulled out the tent and left. And along the north and south of Yinshan Mountain, it goes east in a roundabout way. It must be blocked, which is the third.

Two of these three have already been met.

It depends on where the Xianbei royal court has migrated. If he goes to Mobei, or goes all the way to the west, Liu Bei has nothing to say, so he will stop the army. It's nothing more than wasted food and grass. If it's true, go east, hum!

In addition, what worries Liu Bei the most is the eastern Xianbei east of Youbeiping.

Judging from the map, the Han Ting soldiers sent three roads and took Danhan Mountain directly. The western and central Xianbei can all arrive in time. Only Xianbei, which is far away in the east of Liaoxi, will take time. However, if the eastern Xianbei advances westward, it is necessary to beware of being copied by Liaoxi and Liaodong Wuhuan. Qiu Liju, the king of Wuhuan in western Liaoning, has more than 5,000 people. Su Fuyan, the king of Wuhuan in Liaodong, fell more than 1,000 people. Quite powerful.

Therefore, Liu Bei judged. Before the eastern Xianbei advanced westward, they must first plunder Liaoxi, kill and retreat Wuhuan, and deter the defenders. Then he led his troops to advance and encircle the Han army.

Who is the Taishou of Liaoxi at this time. Can it resist Xianbei?

Zuo Feng once came to the secret letter. said that Zhao Zhong, the regular servant, recommended his younger brother Zhao Bao to be the Taishou of Liaoxi and share the merits of the Northern Expedition. Liu Bei had hurried six hundred miles before setting off and asked Zhao Bao who he was.

Cui Tingwei replied that Zhao Bao is a powerful man. A native of Tobu Castle in Ganling. From his brother eunuch Zhao Zhong is one of the ten permanent servants, he is deeply ashamed and does not associate with him. Chushizhou County, filial piety and honesty, promotion of Guangling order. He has been in office for three years, and he has a strong reputation and a wide reputation. Politics and religion are clear, the county is on the court, Chen said that Zhao Bao acted, and he was recently promoted to the Taishou of Liaoxi.

If this person is really as Cui Tingwei said, 'vigorous and resolute, political and religious clear'. The eastern Xianbei is a little relieved.

At the beginning of September, the restoration of the castle was completed. Liu Bei ordered people to prepare more stones and rolling wood. and sharpened the wood, and made antlers to keep horses away. All the dilapidated dwellings in the city were demolished, and along the inner wall, a kiln was built to burn bricks and tiles. The land was used to enclose stables, pastures, arsenals, and granaries.

The rest of the craftsmen, under the protection of a team of men and horses, re-walked the Mishui Valley Road. Carefully repair bridges and roads to facilitate the transportation of grain and grass.

Every fifteenth day, a team of chariots and horses escorted grain and grass to Baitan City.

Grain and grass are piled up. Liu Bei ordered people to dig more pools, and filled water to prepare for extinguishing the fire. The camps in the city have been set up. There are orders for entry and exit, and the army is neat. Just waiting to be put to good use.

Xu Rong led 500 dragon riders under his command to deploy and control, and the Xianbei camps within a radius of 100 miles were all uprooted. He also ordered his subordinates who were proficient in Hu to pretend to be Xianbei warriors and temporarily live in the camp to act as eyes and ears. Whenever a small group of cavalry moved into the camp, they took the opportunity to kill them. Beware of leaks.

In this way, occupy the city of Baitan for more than a month. The three Xianbei didn't know that under their noses, there was actually a Han army garrison.

In the city, the corner towers, towers, walls, and arrow towers are all ambushed by archers. There is also Cui Ba Han Meng in Wengcheng, who personally guards it. When the former Han Dynasty built the city of Baitantun, they did not hesitate to work. The wall is built with a deep foundation, and all of them are the backbone stones of Baitan Mountain. Although most of the rammed earth walls collapsed, and the soil layer was removed, the foundation of the wall was found to be largely intact. Now the wall is rebuilt on the foundation of the wall, and the result is twice as effective with half the effort.

The repaired wall is three zhang high and more than one zhang wide. The row of bricks is laid, which is easy to walk.

If it weren't for the urgency of time, Liu Bei even wanted to wrap bricks for the city wall. The stables, forage yards, arsenals, and granaries are all important land, which are protected from rockets, and are covered by burning more tiles. Protected from rocket attacks. For waterproofing, it is mostly a dry fence building. There was a great drought in the northland, and there was no great water. Just in case, Liu Bei still made all preparations.

A kiln bricks and tiles are made from billets, dried in the shade, fired in the kiln, removed from the fire, sealed, and cooled out. But more than ten days. One kiln can produce 10,000 bricks and tiles. Nowadays, the brick kiln is roughly divided into several parts, such as the workshop, the kiln room, the flue and the kiln roof. It is not complicated, it can be adapted to local conditions and built as it is used. Both large kilns used in the construction of castles and small kilns set up in tombs abound. The art of brick-making is well developed.

Along the Great Wall in later generations, there are brick kiln ruins of the Han Dynasty, which is evident.

The city is built in the countryside, and there are many bricks burned. The road is familiar with the car, and it is the same when you arrive at Baitan.