Seeing that the main senior strategists under him all supported the position of "making a little bit of a difference on the plank road", Liu Bei's resentment in his heart also stopped a little, and was replaced by unwillingness, but he had to accept it.

He just continued to ask Qin Mi, Cheng Ji, and Zheng Du about the last glimmer of hope, but these people had no better way, at most they only mentioned a little bit of the technical details of how to transport grain from the Baochuan Road, and Li Su answered them one by one.

The tone of this military meeting has been set.

"That being the case, Gongming, you lead 3,000 soldiers from the Han Dynasty, follow me out of a surprise attack, retreat in a small battle, and you don't have to fall in love with the war." Liu Bei made the order, but he planned to take this gesture in person.

This, of course, was unanimously opposed by Li Su, Lu Su, and Fa Zheng.

Lu Su and Fa Zheng are completely considered from a purely military point of view: "The lord can't!" This battle is a feint, just to show that the Han and the thief are not mutually exclusive. With such a small number of soldiers and little food, how can he personally venture into dangerous places? ”

But this rhetoric does not take into account the political card, and Liu Bei obviously did not give up.

In the end, Li Su took into account the political card and persuaded: "That's it, if the lord really wants to recruit in person, I won't stop it, but at the moment, whether the Dong thief really succeeds or there are other variables, everything is still unknown, and the lord is a shepherd, and he can't move lightly." It's better for me to forge ahead with Komeito's light troops, and find out the news by the way.

If it is confirmed that the Dong thief does occupy Chang'an and Yiwu emptiness, and then the horse messenger reports the news from the plank road, the lord can also go north from Nanzheng to Baozhong, and then to the south valley mouth of Kei Valley north of Baozhong County. In this way, it is only one hundred and fifty miles away from the area of the martial arts water in the north valley. If you get a reply from me, you can lead troops to respond, so it can be regarded as the lord's father-in-law has been recruited, and it is more conducive to improvisation. ”

Li Su's words obviously had other intentions, that is, "If you find that Wang Yun's plan is successful, then immediately notify Liu Bei not to use it." ”

It's just that these words are easy to be sliced and studied according to real thoughts, so Li Su put on a layer of skin.

————

Lu Su and Fa Zheng felt that Liu Bei Xiantun was on standby at the Nangukou of the plank road, and they did put on a posture of the Northern Expedition, and the propaganda effect was good enough, and they did leave Nanzheng to send troops, but the troops were moving slowly. Second, as long as Li Su didn't let Liu Bei out of the valley, there would be no real danger, so they also seconded it.

Liu Bei touched his beard and thought for a while, and finally asked: "Boya, you don't know how to fight, now that you have so few troops, you still run, but be careful!" ”

Li Su: "Although I am not good at fighting, I am only cautious in my life, and I will not make trouble myself." ”

Liu Bei recalled Li Su's cowardly posture over the years, and was immediately very relieved.

As soon as the meeting was held that morning, Li Su immediately sent someone to Baozhong County to inform him to prepare lunch and dry food for the next few days, and then immediately set off with Xu Huang, Dian Wei and three thousand local recruits from Hanzhong.

Another digression: Since last year's winter offensive, Li Su invented a wheelbarrow with a brake lever in order to help Guan Yu act on the Weixian Mountain Road in Jianning County to transport grain, this kind of mountain transport vehicle has spread to all parts of Liu Beijun's camp in just a few months.

Because of the existence of the wheelbarrow, the northern warlords really can't use it, it is for the Shu and Nanzhong regimes, so even if the technology spreads, it won't do much harm, of course, the level of secrecy is too high.

At most, it is a bit useful for the warlords of Jingnan or Yangzhou to fight Wuling barbarians and Shanyue barbarians in the future, and they can't hinder any major things.

Therefore, the government on this side of the Hanzhong Basin has also organized Juntun craftsmen to build some wheelbarrows since this year. When Li Su marched to Baozhong County, the Baozhong County Commander had already loaded the carts and rations.

And he chose to reduce one body, and each wheelbarrow only contained a bag full of fried dry food, and it was loaded across the wheel frame, and the load weight was about 260 Han Jin - and when Guan Yu was in the Battle of Wei County, he put a sack on each body on both sides of the wheel, and the carrying capacity was 400 Han Jin.

Li Su brought these military rations and could continue to the north directly. In this way, he also saves the trouble of specifically distinguishing between "wooden cows/flowing horses".

A little mention: because there are different opinions in history about what the "Wooden Ox and Flowing Horse" is, many readers simply discard and disbelieve all the clues of the official history because they can't understand it, but this actually ignores a few very important information.

That is, although the official history of the record of the principle of the wooden ox and the horse is not credible, it is very clear about its use and scope of use:

Zhuge Liang's first few Northern Expeditions took the Qishan Road, so he could directly take a large ox cart, and there was no need to invent the wooden ox flowing horse, and the transportation capacity of the wooden ox flowing horse was definitely not as good as the ox cart.

It was from the time when Hao Zhao attacked Hao Zhao on Chencang Road, because the Chencang Road was changed, and the ox cart could not drive through, so the "wooden cow" was invented, and there was no shadow of "flowing horse" at that time.

The use of "flowing horses" is already Zhuge Liang's last Northern Expedition, taking the Bao ramp out of the martial arts water, and the Wuzhang Yuan Tun soldiers in the west of Yixian County, which was temporarily invented, in order to "the load-bearing capacity and width of the plank road of the Bao ramp road can not even bear the wooden ox, so it can only temporarily design a transport equipment that is smaller in size and less pressure than the wooden ox", which is why there is a flowing horse.

Therefore, each of Zhuge Liang's tools is tailor-made for a specific road. You can disbelieve the description of its mechanical principles in the Romance of the Three Kingdoms, but you should not doubt its use environment and R&D background.

It is precisely because Li Su has his own screening choices that he believes in the description of the background needs of the Wooden Ox and Flowing Horse in "Three Kingdoms", so at the beginning of his construction of the wheelbarrow, he thought about making it easy for the car to "fit two sacks if you want to fit two sacks, and one sack if you want to fit one sack, and at the same time ensure that both loading methods can be balanced".

In this way, he is equivalent to standing on the shoulders of Zhuge Liang, and uses a wheelbarrow to complete the two road tasks of the wooden ox and the flowing horse at the same time, and there is no need to design a shrunken version to avoid collapsing the plank road.

Who made Li Su have the simple concept of "generalization/modularity".

Specifically on the way of plank road transportation, Li Su only explained one point: let all the soldiers pushing the wheelbarrow must hold the far end of the wheel handle, so that people can keep as far distance as possible from the car. At the same time, when the previous car and the next car go, they should leave enough safety distance, such as at least two feet apart, which is as strict as the driver's license theory test in later generations.

This is the simplest and most simple way to "prevent people and the station from being on the same plank, causing the plank to collapse due to excessive pressure", and naturally also prevent "the people in the back and the front car from putting pressure on the adjacent plank".

With such a rigorous physical design, where do you need to make a separate flow horse.

Xu Huang and Dian Wei looked at Li Su's plank road marching dispatch, and after walking for dozens of miles, they praised again and again: "The governor is really omniscient, the first time he drove on the plank road, he didn't even go out of danger at all, and the wooden pillars of the plank road didn't even creak." ”

Li Su said calmly without any arrogance: "Don't slack off - it's not that I asked you to hand over your armor to the soldiers to carry, and people are not allowed to ride on horseback and can only lead it, otherwise maybe the horse's hooves will trample the plank road." ”

Dian Wei hummed and snorted: "The governor himself is not riding a horse yet. ”

Li Su: "I'm thin! My horse is skinny, too! So it's less stressful. Forget it, I told you that you don't understand. Besides, when I go to the dangerous section, I also come down to lead the horse. ”

At least in those dangerous sections where it is easy to fall down the mountain and die, Li Su has always dismounted and walked, even if he stops a crutch to save some effort, or asks Xiaobing to take his shoulders to help him carry dozens of pounds of weight. Civil official, there is no way, it really doesn't cost his life if he walks 200 miles.

On the first day, when it was dark, the troops had not yet reached the mountain villages where they could rest for the night, so they had to continue their march with torches, and forced the march until it was close to midnight, and finally found an open field in the valley, and the plank road was temporarily closed, and when they saw the village, the army slept in the open at night.

The infantry could only advance 50 miles a day on a normal march, mainly because they had to carry grain and grass and carry heavy loads. But Li Su didn't let the troops bring covers and tents this time, because they were not afraid of the cold and sleeping in the open air in summer, so they could hurry, plus there was little food, even if the marching speed debuff of the plank road was counted, they could still walk more than 70 miles a day.

However, even at this speed, Li Su is still not very satisfied, after all, he made a plan according to "Dong Zhuo is dead", and he always wants to make more, so it is necessary to rush time.

When camping that night, Li Su ordered: "I have been observing for a long time today, and the rear army's baggage and heavy grain convoy has also mastered how to march on the plank road, so we don't need to personally supervise it." Gongming, you can leave a Qu Junhou to supervise the grain team, march sixty miles a day, and two days later go to the last place in Taibai Mountain before the valley to settle down. The rest of the troops, who did not bring food, increased the daily speed to 100 miles, and in two days we will rush to Yixian! ”

Xu Huang was surprised: "So urgent? Is it just a day or two? Even if you can get there, you're tired and not ready to fight. Moreover, the elite soldiers of the lord are trained in Chengdu and Nanzhong, and the soldiers on this side of Hanzhong are all tuntian, who are all planting in the spring this year, and only train a little in the summer when the farmers are idle, so the soldiers are more afraid of the consumption of physical strength and morale by forced marches. ”

Li Su: "This is an order!" I have my own concerns. We are only making a feint and making a gesture, and it does not matter whether we win the war or not, what is important is to find out the real and definite enemy situation as soon as possible! ”

Xu Huang also persuaded from a military point of view, and after seeing Li Su raise the posture of "you don't understand anything except military", he immediately shut up.

Li Junshi and Li Dudu must have other political considerations.

"Yes!" Xu Huang simply accepted the military order.

In the next two days, the vanguard, about two thousand men, who had only five days of roasted rations and jerky, with them, accelerated further.

On the evening of the fifth day of June, we arrived at the Taibai Valley, the last foothold before the slope.

The troops took a nap for three hours, and set off again at dawn on the sixth day of the first lunar month, and walked out of the slope before noon, and arrived at Wuzhangyuan along the Wugong Water. The two-and-a-half-day march of more than 200 miles by land and water was a god-fast march.

After arriving at Wuzhangyuan, the troops were not idle, on the one hand, they could finally send a large-scale scout to scout Ma Sa to reconnoiter the military situation, and on the other hand, everyone crossed the Wugong Water and went east along the Weishui River to the east to reach Yiwu.

At the beginning of the afternoon, when Li Su was still more than ten miles away from Hewu, the scouts who had been scattered out finally caught some tongues and fugitive officials and gentlemen, tortured important information, and returned to Li Su's military formation to resume his life.

"Good news, Governor! Great news! It turned out that Dong Zhuo did not usurp the throne, it was Wang Situ's plan to trick Dong thief into going to Chang'an to kill him! Dong Zhuo should have died four days ago, and the news of his death reached Yixian County the evening before yesterday, and it should have spread all over Chencang and Anding today. Many of the remaining thieves fled with their belongings! ”

When Li Su heard this, his heart was just a stone falling to the ground, but his expression had to pretend to be extremely surprised and extremely unexpected, and he pretended to be dizzy for a few seconds before he shouted: "Soldiers! We have come to crusade against the usurper Han thieves! Since God blesses the thieves of the Han Dynasty to ambush them, we also happen to participate in the grand event, kill a few remnants, and the whole army will rush with me! Kill all the remnants in the Dock! ”

"Enter the Dock! Punish the remnant! The morale of the two thousand Tuntian soldiers skyrocketed in an instant, and they all changed their decline like wolves and tigers.