Where is the white sandalwood, there are two theories in later generations.

Tradition believes that on the south bank of the Xingzhou River in the northeast of Luanping, Hebei Province, it was named after Baitan Mountain. Later, some people pointed out that it was contrary to Cao Cao's northern expedition to Wuhuan. And said that the site of Baitan City is in the east of Kuancheng County, the site of Yaowangmiao Village. He also pointed out the errors in the Book of Han and the Geographical Chronicles. Words: Out of Lu Longsai, Li Bai Tan, Pinggang. If Bai Tan is in Luanping, it doesn't make sense from the map. The former refuted the latter, saying that the Hanshu should not be questioned. Regardless of the evidence, it is said that the white sandalwood placed in the early Han Dynasty and later generations is not the same place. Yunyun.

Therefore, there are two routes for Cao Cao's Northern Expedition to Wuhuan that have been circulated in later generations.

One folds northwest and then northeast. This is the route contained in the Book of Han and the Commentary on the Book of Water. The other goes all the way to the northeast.

In fact, in Liu Bei's opinion. At this time, the march is more along the road.

As mentioned earlier, why should the current residence be divided by pavilions and li. Ten households are one mile, ten miles are one pavilion, and ten pavilions are one township.

It is precisely because compared to the later generations who needed to feed more than a billion people, the arable land needed by the 50 million people of the Han Dynasty was only one-twentieth of that of later generations.

The rest are all unexplored swampy forests and plain mountains.

A winding official road, through the mountains and mountains, from the swamps, dense forests, plains, mountains, connecting the Central Plains civilization. Those places far from the road, inaccessible and riddled with fierce beasts, even a few 'wild people' infested cannot afford to continue civilization.

Therefore, the road is the most important carrier of civilization nowadays. Therefore, the entire administrative structure, divided into li and pavilion, is very reasonable.

Even if Baitan is in the northwest of Lulongsai, if there is indeed a border road to Lulongsai in the Western Han Dynasty. Nowadays, although there are only "micro paths to follow", it is much easier to pass than through swampy dense forests and mountains. Therefore, Cao Cao first turned to the northwest, and then all the way to the east. Arriving at White Wolf Mountain, it is very reasonable.

Therefore, it doesn't matter where the city is. What matters is where the road is.

Wuyan, the king of Wuhuan in Youbeiping, said that Baitan City is more than 400 miles northwest of Lulongsai, and Liu Bei is naturally convinced.

To the east of Baitan, it is what Tian Chou said, 'out of the empty land'. To the northwest, Baitan is the eastern end of Yinshan Mountain, and the Inner Mongolia Dam is on the plateau in later generations.

Liu Bei didn't need to venture north. As long as you occupy the white sandalwood and disperse the scouts, if the Xianbei royal court moves all the way east along the southern foot of Yin Mountain and along the Great Wall, you will be able to meet it!

This goes to the outside of the plug, and it is very useful to ride on foot. There are also crossbowmen, and defending the city is also important. Hou Mansion good craftsmen and Lou Sang skilled workers should also be brought. Tent carts are naturally the best choice for transporting heavy loads. There are also machine carts and many weapons. Liu Bei ordered people to buy more chalk, sulfur and other materials and store them for later use.

"Book of Wei" cloud: "There is a volcano like Yue, the stones next to the mountain are scorched and molten, and the flowing ground is condensed for dozens of miles, that is, the stone is sulfur." The Central Plains region has also begun to extract sulfur from Nirvana (black coal-bearing pyrite). At that time, it was a process of making alum: in an adobe kiln, ore and coal were stacked, and the sulfur was condensed from the top of the kiln. Therefore, in the Eastern Han Dynasty, sulfur had the alias of "alum stone liquid".

There are still a few months before the imperial court sends troops. Liu Bei also ordered someone to take out the accumulated fur and sew the felt tent. Saw big wood, wide build high cars.

Military rations are all dry rations. Dried fish, dried meat. The japonica rice is ground into flour, mixed with oil, green salt, minced meat, steamed, pressed into round cakes by water pressure, and sealed and wrapped by cattle and sheep casings, which is easy to carry. Just take out a piece and cook it, and you're good to go.

Because it is mixed with oil and green salt, it is similar to a sausage, and the casing can be kept fresh for several months after it is sealed. It's just that the flavor is quite salty. It needs to be boiled in water before swallowing. It can also be eaten dry. But you need to eat a bite of bread, just a sip of water, so that it is not salty.

Liu Bei ordered Xu Rong to go to Luoyang in person and handed over the handwritten secret letter to Zuo Feng of the Yellow Gate. Cui Ba and Xu Rong once escorted Zuo Feng to and from Luoyang and Lousang with fifty dragon riders. Cui and Xu Erjun are the henchmen of the young monarch, and they are quite familiar with Zuo Feng, so Zuo Feng will not be suspicious. In Liu Bei's letter, he asked Zuo Feng to find an opportunity to make a statement to the saint, and allowed him to lead the right Beiping Wuhuan out of the customs and plan the Northern Expedition. It is said that the right Beiping is sandwiched between the central Xianbei and the eastern Xianbei, if an army can be sent here to intercept the central Xianbei, and together with the Wuhuan of Liaoxi, the eastern Xianbei will be flanked back and forth, which will be of great benefit to the Northern Expedition.

There are four Wuhuan in the three counties. Liaodong Wuhuan whip is beyond reach. Qiu Liju, the king of Wuhuan in Liaoxi, sent troops together with Zhao Bao, the Taishou of Liaoxi. The king of Wuhuan in the upper valley is difficult to tower, and he will send troops to Gaoliu together with Xia Yu, the captain of Wuhuan. Left to the right Beiping Wuhuan King Wuyan, no one cares. Weakness is naturally the biggest reason.

If Liu Bei invites himself to go north, without spending the imperial court's military funds, and Zuo Feng from the side, he may be able to succeed.

This matter should not be publicized. If you resort to the court, let alone Liu Bei's invitation, it will be difficult to make this Northern Expedition.

And so it is. It was the constant attendants around him who kept talking, and the emperor who had just served Yuan was able to overcome public opinion and send troops to the Northern Expedition.

Take advantage of his illness and ask for his life. The timing was just right. It's a pity that Xianbei was unified, and his strength was unrivaled for a while, and he was finally defeated.

Xia Yu, the captain of Wuhuan, Tian Yan, the general of the Xianbei Zhonglang, and the general Zang Min of the Xiongnu Zhonglang, have been on the battlefield for a long time, and they are all called good generals. If it weren't for Xianbei's strength, he would not have been defeated.

Half a month later, Xu Rong returned. Bring back Zuo Feng's handwritten book. Say, let the young prince get his wish. He also said that when things are done, don't forget the righteousness of protection.

Reading between the lines, there is a lot of confidence. It seems that the imperial court or the forbidden middle school is very confident in the Northern Expedition. First, there was Wang Fu, a regular servant, who tried his best to match. Later, there was Zhao Zhong, who was a regular servant, and recommended his younger brother Zhao Bao as the Taishou of Liaoxi to share the merits of the Northern Expedition. Now that the Northern Expedition has not yet been completed, Zuo Feng began to ask for credit.

I don't know how these ministers, who don't understand military affairs, have the heart to win.

It is no wonder that His Majesty the Emperor of my family will ignore the advice of the ministers and send troops to the Northern Expedition. Apparently bewitched by the ministers......

If you can hit it with one blow, Xianbei will be chaotic. It can ensure that the Hanting has been peaceful for decades. Wait to destroy the yellow scarves, settle the displaced people, recuperate, and send troops north again to collect the lost land of the former Han Dynasty!

Even if it doesn't work, Liu Bei has to leave some seeds for the Han Jingqi. Turn big defeat into small defeat, small defeat into undefeated. If you can be invincible and undefeated, it is also due to the community.

The Northern Expedition is known only to confidants and retainers. It's business as usual in the city.

After the locust plague, farmers began to raise seedlings. The 3,000 Ganlan heavy buildings in Dukang City have been completed before the beginning of spring. The people of Huaisi Mountain have all moved into new homes. Strong men and healthy women were beaming, and they went down to the water one after another, built dams to scoop water, and opened up new fields. Around the city of Dukang, the canal water network, Qianmo vertical and horizontal. The rice fields are like a chessboard, and they are magnificent.

Boats come and go in the ditch to transport seedlings and prepare for transplanting.

In addition to paving roads and canals, most of the skilled craftsmen took wheels and boats to Licheng. The speed of Licheng's construction has been doubled. It doesn't take years. In just over a year, it will be completed.

This summer, there was a locust plague in Qizhou, and the autumn grain harvest was lost. The surrounding villagers dragged their families and moved to their hometowns one after another. Liu Bei took precautions and took precautions. It was decided to put the construction of the city of Dali on the agenda.

Liting ditch water 'turns southwest again, Lida Li Tingnan, into Juma water'.

'Wet water' flows southeast in the northwest of Rongcheng County, southeast of Dali Ting and easy water. And inject giant horse water also. Therefore, the geographical chronicle says: Yishui to Fanyang into the wet. It is also said: Wet water canal. Xu Su said: 'Wet water and water'. Wet water and easy water merge in the southeast of Dalitei to inject Juma water. Juma water is Laishui.

Dali Pavilion is surrounded by the north-south Liting ditch water, the east-west south Juma water, and the southeast flowing water. Within ten miles of Dali Pavilion, Liu Bei was ready to choose a place in the middle to build Dali City.