("Chu Chen" is about to be finished with more than 100,000 or 200,000 words, no surprise, it will be completed before the end of this month, and it will not go out to wave on the National Day, it will be updated normally, brothers have a monthly pass in their hands, don't forget to vote...... ）

The southeast valley of Fenshui, covering Jiangxian, Wenxi, Quwo, Yicheng and other counties, the terrain is mainly organized by low hills and alluvial plains of rivers and rivers, which is conducive to cavalry roundabout combat, and the Mongolian army has a number of strong cities in the river valley, fighting according to the city, and has an absolute advantage of the elite cavalry, how to look at this battle is the Mongolian army's chance of victory is greater.

Han Qian did not want the two armies to continue to confront each other on the northern slope of Wangwu Mountain, and Wusu Dashi was also eager to engage in a battle in the southeast valley of Fenshui.

Every family has a scripture that is difficult to read, Han Qian is worried that the relationship between Daliang and Shu Chu will undergo subtle changes at any time, and Wusu Dashi also has a reason to urgently engage in a battle.

In addition to organizing a battle at this time, it was more beneficial for the Mongol army, Wusu Dashi was also worried that once the Liang army was called to establish a strong stronghold in the northern foothills of Wangwu Mountain near the northern pass of Yiguan, a small number of Liang troops would be able to contain a large number of their soldiers and horses, and even directly threaten the agricultural production of the Fenshui River Plain, which accounted for a quarter of the population and arable land in the ancient county of Hedong - this also determined that the Mongol army could not simply defend a few walled cities such as Jiangxian and Quwo this winter.

The Fenshui River Valley, as the core channel connecting Taiyuan to Guanzhong, not to mention characters like Wusu Dashi, even the middle and lower-level generals know in their hearts that if the Liang army is like a sharp knife, pointing directly at the banks of Fenshui, if the time drags on, their subsequent control over Guanzhong will inevitably be seriously weakened.

Since the invasion of the south, the war has been very profitable, but after Han Qian became the master of Heluo, the strategic intentions of the Mongolian army have been repeatedly frustrated, and Liang Shixiong's Wei Bo elite soldiers and Tian Weiye's Luzhou elite soldiers have been completely annihilated one after another, which has a great impact on the morale of the generals of the Southern Courtyard, and also causes the Northern Courtyard to become more and more self-righteous and speak out and dictate the affairs of the Southern Courtyard.

Usu Dashi is also in desperate need of a new victory to regain its prestige.

In order to attract the Liang army to come out of the pass valley in the northern section of Yiguan for a battle, in early October, Wusu Dashi also sent an envoy to Yuanqucheng to meet Wen Bo, and agreed that the Mongolian army would withdraw from the northern slope of Wangwu Mountain at that time, so as to make room for the Liang army to arrange troops, and the two armies would fight to the death in the open area southwest of Jiangxian County.

The Mongol army that then forced the northern slope of Wangwu Mountain did shrink back, but Wen Bo would not simply think that Wusu Dashi really had the "elegance" of Song Xianggong, and would really let them transfer all their soldiers and horses from the deep gorge and valley of Wangwu Mountain comfortably before attacking.

In the early stage, Chen Yuanchen led the infiltration troops and horses to do a great deal of work, and carried out a thorough and detailed survey of the terrain of the northern slope of Wangwu Mountain and Jiangxian County; in addition to marking almost hundreds of large and small mountains, peaks, ridges, slopes, valleys, dry ditches, streams, rivers, canals, and wild trails and mountain roads on the latest combat map, he also sent two or three liaison guides to the more than 300 main battle and reserve battalions participating in the battle.

Chen Yuanchen did not directly lead the troops into battle, but entered the Military Intelligence Staff of the Forward Battalion to directly assist Counselor Wen Bo in military affairs.

The Mongol army shrank to the north, and Wen Bo commanded his troops and horses to spread out of the pass from the relatively easy slope and valley terrain on the northern slope to the mountains on both flanks.

If you really go north directly along the Jiangyuan Post Road expected by the Mongolian army, before you reach the south of Jiangxian County, you will inevitably be counterattacked by the Mongolian army fiercely; A large number of their soldiers and horses were crowded on the narrow road of the Jiangyuan Post Road, and they could not be used, and the flanks were fiercely attacked by the enemy's cavalry, which could easily induce a total collapse.

It is impossible for Wusu Dashi to really wait until the main force of the Liang army is comfortably unfolded before the decisive battle, seeing that its plan is not for sale, a large number of Liang troops are like a flood of blue and black, through the relatively gentle slope valley, spread to the two wings of the mountains on the northern slope of Wangwu Mountain, and immediately ordered the forward soldiers and horses to turn around immediately and attack south along the Jiangyuan Post Road.

Through the bronze mirror, standing on top of the Nancheng Tower in Jiangxian County, watching the Liang army gushing out of the pass like a torrent, the shadow in Xiao Yiqing's heart became heavier.

Although they detected that most of the reinforcements and horses that Han Qian had drawn from Yingxi and other places to the north were reserve soldiers who were not very strong in combat effectiveness - this also showed that the military accumulation of the Liang army in recent years was not strong enough, and it was a place of four battles, and it was difficult to put all the elites on one battlefield - but looking at the Liang army pouring out like a torrent, Xiao Yiqing could feel that the thoughts of the Liang monarchs and ministers to conduct the battle were more firm and urgent than theirs, and it was inevitable that there would be a trace of self-doubt.

Generally speaking, the most clever strategy is to "displease the enemy" as much as possible.

To put it simply, if the enemy is afraid of war and avoids war, it should do everything possible to force it to respond to the battle and go to war as much as possible; If the enemy is desperate to fight, it should in turn delay the opportunity and wear down the enemy's patience in order to wait for the situation to change in a more favorable direction.

In the current situation, both sides are eager to engage in a battle.

Comparatively speaking, they have more advantages in the scale of soldiers and horses, but at the moment it seems that launching a battle from Yiguan is a long-planned plan of the Liang army, except for a slight shortage in the scale of soldiers and horses, it must have been more fully prepared than them in the early stage.

The soldiers and horses of the two armies quickly came into contact with each other in the open area of the Jiangyuan Post Road and the two wings, and the soldiers and horses of the two sides combined with more than 20,000 people.

At this time, it was only the beginning of the war, the soldiers and horses of the troops were lined up on both flanks of Jiangxian County, and the cavalry could still pass through the camps of the soldiers and horses in a fast and orderly manner, and Wusu Dashi could still control the evolution and development of the war situation at this time, but as the war entered a more intense stage, the soldiers and horses on both sides could not avoid the staggered tooth difference between each other, and then it would only rely on the command and dispatch of the generals in the front.

Xiao Yiqing clearly knew that the Mongolian army was at a disadvantage in this regard, and they still had to keep the array as clean as possible.

If necessary, you can even use elite cavalry to quickly attack the Liang army array without counting the damage, and break it up, so that the follow-up more neat infantry array can be pushed forward, and the dog-tooth melee with the Liang army should be avoided as much as possible.

Of course, they fight by the city, and their control over the entire battlefield still has an absolute advantage.

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When the enemy counterattacked, Wen Bo immediately ordered the soldiers and horses in the front to shrink south along the Jiangyuan Post Road, and ordered the soldiers and horses that had spread to the mountains on both wings to assemble on the spot, and use light chariots to stabilize the battle formation as much as possible, and form a pocket formation along the Jiangyuan Post Road and the mountains on both wings to attack the enemy troops going south along the Jiangtan Post Road.

The enemy retreated to the north, while the forward troops and horses continued to advance north along the Jiangyuan Post Road, and continued to expand into the slopes and valleys on both flanks.

In three days between the two armies, the two sides fought more than 30 battles on the Jiangyuan Post Road, each with thousands of casualties

It has also succeeded in obtaining a large enough expansion surface in the southern area of Jiangxian County.

In addition to the reserve soldiers and horses, six infantry brigades, three cavalry brigades, and six reserve brigades entered the southern area of Jiangxian in an all-round way.

In the past three days, Han Qian has been staying in the Red Stone Village deep in the canyon in the northern section of Yiguan, silently following the progress of the war, not going to the front to supervise the battle, nor sending someone to send a word to Wen Bo, or hand over an edict.

More than 40,000 reserve soldiers and horses were also transferred out of the northern pass of Yiguan to camp, which means that the conditions are ripe for a final all-out decisive battle.

Wen Bo and Guo Ke, who was ordered by Han Qian and had come to serve as his general staff since the Northern Expedition of Yiguan, were also like boulders at this moment.

This battle will fundamentally determine the direction of the battle on the northern front, Wen Bo has experienced many life-and-death battles in his life, and there is no sense of ease at such a moment, and he feels the huge pressure on his shoulders.

Wen Bo and Guo Ke, accompanied by a group of staff and military attachés, inspected the former camp and returned to the Chinese army camp, and saw from a distance that there was an extra group of soldiers of the garrison brigade next to his big tent, and looked at Huo Li, who greeted them in front of the camp, and asked, "You have come here?" ”

"The gentleman is in the big tent with Concubine Shu and Mrs. Xi." Huo Li said.

Wen Bo's mood at this moment was complicated, he felt a heavy responsibility, but he didn't want Han Qian to directly interfere with his front-line command.

In his opinion, even if Han Qian could restrain himself from saying anything, when Han Qian arrived at the forward camp, he would send some subtle signals to the generals below, thus interfering with his decision-making on the battlefield.

Wen Yuan coughed lightly, reminding his uncle Wen Bo that no matter what, he should not show an unhappy expression.

Wen Bo suddenly thought that no one in the whole army was the opponent of the king, could it be that there was really any subtlety on the battlefield that he was negligent, so that the king had to break his promise and rush over in advance?

Thinking of this, Wen Bo turned over and jumped off the war horse, and walked towards the big tent with Guo Ke, Wen Bo, Chen Yuanchen and others.

Accompanied by Feng Yi, Gu Qian, Han Yuanqi, Yin Peng and others, Han Qian, Zhao Ting'er and Xi Ying sat in the big tent, talking with several middle and low-level staff officers who stayed on duty in the big tent around the long military table, and when they saw Wen Bo and their report walking in, they stood up and said with a smile: "I broke my promise, you must be very unhappy when you see me sitting here, right?" ”

"The last general will not dare," Wen Bo saluted, "The king rushed over, it must be Wen Bo's thoughtfulness, which made the king worried." ”

"You guys did a good job, there's nothing unthoughtful," Han Qian motioned for Wen Bo and them to sit down and talk, and said, "However, if there is no strong wind tonight, Ting'er predicts that there will be a high probability of foggy weather on the northern slope of Wangwu Mountain in the early morning tomorrow, and I think I should remind you of this......"

"Dare to ask Concubine Shu, how sure is the probability?" Wen Bo couldn't help but stare at Zhao Ting'er and asked.

The weather in the Fenshui River Valley is cold and humid in autumn and winter, and it is easy to cause fog, which is something that Wen Bo has known for a long time, but the problem is that he cannot accurately predict under what conditions the fog will generate, so the foggy weather is a neutral factor that needs to be vigilant but difficult to use for the soldiers and horses of the two armies.

If they can predict the formation of fog more accurately, they will be able to completely grasp the initiative in the operation of large armies - and in foggy weather, luring the enemy's main force out of the camp for battle, they can have psychological and various preparations in advance, and they will be able to give full play to the advantages they have formed in the command system.

Wen Bo originally planned to rest for two days, and then advance his troops to Jiangxian depth, close to the enemy's forward line, and conduct a tug-of-war operation, testing or consuming the enemy's will to fight.

This is the most conservative and prudent method of warfare.

And if you can confirm that there will be heavy fog tomorrow morning, this is too crucial.

He can even directly adjust the established battle plan, and perhaps in the afternoon he will have to deploy the reserve brigade, which is much weaker in combat effectiveness, to the center line. Advance along the Jiangyuan Post Road to the enemy's forward line and attract the enemy's elite main force to this line.

The real elite combat brigade and cavalry brigade of Daliang should be deployed to the two wings at night.

In the fog of tomorrow morning, the elite combat units will penetrate directly from the flanks and penetrate deeply, directly attacking the enemy's camps on both flanks of Jiangxian County, and directly involve the main force of 80,000 or 90,000 enemy troops assembled in Jiangxian County into the chaotic decisive battlefield, carry out merciless blows, and annihilate them, so that the Mongolian army will be crushed in one battle.

The various ministries had already established a staff system, and the Northern Expedition had established a staff headquarters of the former enemy led by Guo Ke before the war to assist Wen Bo in handling various complex military affairs, and had long drawn up various different plans for various situations.

The question is that Wen Bo wants to confirm this high probability, what is the probability.

If the number is only more than five or five, he will concentrate the reserve brigade with weak combat effectiveness and deploy along the middle line of the Jiangyuan Post Road, but there will be no heavy fog tomorrow, and it is very likely that the enemy will seize the sore feet and desperately counterattack, which will cause the situation of the battle to be completely unfavorable to them.

"For three consecutive days, the measured level of water vapor in the air has been steadily increasing, and it has reached saturation by noon, and the key is to see if there will be wind at night. The south wind is fine, but the dry and cold north wind blows at night, and the water vapor blows away, and the fog is difficult to develop. The probability of fogging can also be predicted more accurately according to the size of the night wind. According to the current experimental data of the Institute of Engineering, the probability of foggy days will be reduced to eighty percent, the wind of the sound strip, the probability of fog will be reduced to sixty percent, and the wind of shaking branches will be above the ...... of water vapor will disperse," Zhao Ting'er said.

Li Chunfeng of the previous dynasty wrote a book on the climatic phenomenon of wind, and divided the wind force into ten grades according to "no wind, gentle wind, wind with moving leaves, wind with chirping strips, shaking branches, falling leaves, breaking small branches, breaking large branches, breaking trees, flying sand and stones, and pulling up large trees".

At present, there are more accurate measurement methods in the Institute of Engineers, but the wind classification is still based on the old practice.

The research on weather prediction by the Institute of Engineers has just begun, far from being accurate, and the conditions for the generation of fog are relatively simple, and there are some achievements that can be obtained at present, but it has not yet been able to form a weather prediction system......

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It is a conventional tactical arrangement to take turns to enter the front line in order to effectively reduce the physical consumption of the soldiers, share the casualties, and replenish the troops in a timely and effective manner.

After the Liang army exchanged banners, three reserve brigades were arranged in the afternoon to replace the three main infantry brigades on the forward line, and two additional reserve brigades were sent to the forward line in the future, and it was difficult for the Mongolian army to see anything abnormal from this.

And Wusu Dashi didn't want to see the Mongolian army on the forward line being forced by the Liang army to retreat again, and he didn't want to see it

The Liang army was more comfortable to deploy its troops in the open area in the south of Jiangxian County, and even pushed the troops to the lower part of Jiangxian County, but only mobilized troops and horses accordingly to strengthen the deployment of forward line troops along the two flanks of Jiangyuan Post Road.

After nightfall, through the dense torches, I saw that a large force of Liang troops crossed the mountains on both wings, outflanking the flanks of its forward line, and Wusu Dashi also sent additional troops and horses to the simple guards on both flanks of the forward line at the same time, and unconsciously, a large number of soldiers and horses were piled up on both sides of the forward line and both wings.

In the middle of the night, the sky was quiet and windless, and clouds of fog and vapor rose from the Fenshui River and then dispersed to the wings.

Due to the Luoyang Navy controlling the Fenshui River, except for a small number of scout cavalry, the Mongolian army's garrison was far away from the river bank.

There was often heavy fog in the Fenshui Valley in autumn and winter, and the scout cavalry did not realize that there was anything unusual about the spread of the fog vapor along the river after midnight or something worthy of vigilance.

They were just closer to the river bank than usual, staring at the warships of the Liang army so that nothing unusual would happen, and they didn't even feel that the night battle launched by the two armies on the forward line forty miles away had any direct connection with the fog rising along the river at this time.

Seeing several Kong Ming lanterns rising in the sky above the Fenshui River from a distance, it was confirmed that the fog was the first along the river, and under Wen Bo's instructions, Cao Ba and Lu Ze turned over and stepped on their horses.

Their combat mission was to lead 3,000 elites each to cross the valley slope trails about 20 miles long on the two wings before dawn, take the lead in launching a surprise attack on the soldiers and horses on both flanks of the enemy's forward line, tear the gaps, and then cover the elite of the 40,000 main infantry brigades that had entered the two wings to prepare for the attack, and directly penetrate the enemy's depths along the open areas on the two flanks of Jiangxian County, and raid the two cavalry battalions of the Mongolian army before the fog dissipates.

There are too many soldiers and horses gathered in the southeast valley of Fenshui on both sides, and the city of Jiangxian is strong but small, and it can't fit so many soldiers and horses, not to mention that Wusu Dashi is by no means going to fight a battle to defend the city and sit and watch the Liang army set up camp in the south of Jiangxian County.

In addition to the guards and horses of Wusu Dashi, the main force of the 90,000 Mongolian army was mainly camped on the two flanks of Jiangxian and the forward line to resist the northward advance of the Liang army.

Wu Su Dashi and Xiao Yiqing only noticed that the fog in Jiangxian County was heavy after an hour, but they did not arouse enough vigilance, after all, the foggy weather was an equally unfavorable neutral factor for the two armies, and he ordered the troops to strengthen their vigilance at the same time, he also expected that the Liang army would become more cautious in the face of sudden changes in the weather.

The night battle that was hastily launched on the forward line was temporarily suspended with the contraction of the Liang army, which also seemed to be in line with their prediction.

If it weren't for his usual caution, Usu Dashi would have wanted to go back to the bedroom to rest.

When Wu Su Dashi and Xiao Yiqing noticed the abnormality, it was the generals on both wings of the forward line who noticed that the advance of the Liang army in the slope valley in the dense fog was not interrupted by the fog, but at this time, the sky was hazy, and the wet and heavy fog vapor had water droplets condensed on the window paper, and when they pushed open the door of the room, they couldn't even see the scenery in the small courtyard that was two feet square.

After the fog rose, the torches in the distance were obscured and could not be seen, and the scouts on both flanks judged from the sound of the two armies controlling the periphery of the area, judging that the Liang army had been gathering on the south side of the two flanks of the forward line, and the scale was huge, far beyond their expectations.

Xiao Yiqing stood up in shock, Liang Jun predicted today's fog, and had already planned to deploy to take advantage of the fog to launch a surprise attack from both wings?

"All the heralds will be dispatched immediately, and the generals of the forward line and the camps on both wings will immediately form a formation to defend against the enemy!" Usu Dashi shouted loudly.

The camp on the forward line was too rudimentary, with simple fences or thin rammed earth retaining walls and shallow trenches that could be easily broken through without the need for any weapons.

And in the fog, lighting a bonfire can't get far.

Although they had their own means of communication and direction in the fog, the problem was that the Liang army came prepared, and did more than they did in these aspects, and the soldiers on their forward line may have already scattered into the camp to rest, where is it possible to be fully prepared to meet the battle in a hurry?

The only way to prevent the Liang army from launching a surprise attack was to gather as much as possible, form a ring formation, and do everything possible to avoid falling into chaos, which was the only means to prevent the Liang army from launching a surprise attack while it was foggy.

In order to prevent the Liang army scouts from infiltrating to intercept the heralds' cavalry, Wusu Dashi also ordered the soldiers on the city tower to beat the war drums and blow the horn to warn with the greatest strength.

Xiao Yiqing climbed the South City Tower with the Wusu Dashi, and saw that the fog between the heavens and the earth was boundless, and the scenery ten zhang away was tightly covered by the fog, and a heart was like the bottom of a sinking well.

"The right wing of the Hufeng battalion was broken by the Liang army, the casualties of the soldiers on both sides are unknown, the camp tent was set on fire by the Liang army, the generals escaped, and the Liang army seemed to go in the direction of Yujiagou......"

"The left wing Jiafeng Battalion and the Guaishan Battalion were broken by the Liang army, and the Liang army seemed to be heading to Tianwa Bay......"

One after another, the unfortunate news came, and it was like a thunderbolt that shocked them.

"The Liang army is running to the cavalry camp!" Xiao Yiqing said in shock.

Although the information passed back was chaotic, it was not difficult for him to analyze what the intention of the Liang army was to raid and kill the soldiers and horses from both wings.

The terrain in the south of Jiangxian County is still dominated by shallow low hills, the forward line and the two wings are dominated by the Yanyun Han army and the infantry of the attached army, and the cavalry battalion is deployed on the rear flank of Jiangxian County.

It was impossible to fight in foggy days, and now tens of thousands of cavalry were huddled in several company camps on both flanks.

did not take into account that the Liang army infantry cavalry dared to penetrate in depth in the early stage, and at the same time, the cavalry was not used for defense, the defense facilities of the company camp were extremely simple, and they were suddenly attacked by the enemy, and they could not fight in formation, and they could not be interspersed in a roundabout way in foggy weather, God knows what the chaos would be after being killed by the Liang army.

"Quickly order Zhehe and Minshan, and abandon the camp to Quwo, Wenxi, and Yicheng to disperse, and not fight hard with the enemy!" Usu Oishi ordered.

The cavalry comes and goes like the wind, and there will be no loss in abandoning the large battalion, and when the fog clears, it is convenient to assemble again, otherwise you will fight with the prepared enemy in the fog, and I don't know what it will be killed!

Watching several horsemen ride out of the city gate, ride deep into the fog, and rush to the cavalry camp to give orders, Xiao Yiqing is worried and difficult to go; If this surprise attack had been planned by the Liang army a long time ago, they realized that their naval troops and horses had most likely landed on the shore and formed a formation from the flank of the cavalry battalion to intercept it.

In such foggy weather, it is difficult for the cavalry to organize a decent attack, once intercepted and confused, the vast majority of the cavalry deviate from the main road, lose the ability to discern the direction, and then can only fall into a chaotic battle in their own formation, the consequences will be disastrous.

But they can't do much more than wait for the fog to lift......