Liu Yi's letter to Hanzhong, Zhang Huguan immediately made arrangements, Zhang Xiu led the Chang'an battalion soldiers to the Jiameng Pass to march quickly, Zhang Lu also sent his general Yang Ang to lead the army of 10,000 to help, during the march Zhang Xiu placed the Hanzhong army behind the Chang'an battalion, in addition to the order of the military division to coordinate the relationship with the Hanzhong generals, the two armies have never been coordinated with the drill is also one of the reasons. And in this march, the gap between the two armies has already been revealed a day later, and the Chang'an battalion has opened the distance of twenty miles of the Hanzhong army behind it under the full speed of marching!

The land of Hanzhong is mountainous, and the terrain near Jiameng Pass is extremely complicated, and when he got the suburbs of Micang Mountain, which is forty miles away from Xiongguan, Zhang Xiu, who observed the terrain, waved his hand to stop the march of the army! According to Zhang Niujiao and his entourage, who met on the road, this pass is still in the hands of the generals of Yizhou, and the march of the Yan army will not be threatened in any way. But the terrain of the high mountains on the left and the dense forest on the right still makes Zhang Xiu have to be cautious!

Since the time of the crusade against the Yellow Turbans, Liu Yi's victory in a hundred battles has always been praised, and there is also a point of admiration that he has never been ambushed by the enemy, in the battle of Yanzhou, Cao Cao tried all kinds of strategies to lure the Youzhou army into the hinterland but could always be detected and guarded against by Liu Yi in advance, Cao Cao and many people in the world attributed it to Lang Sheng's caution in using troops, but only a few people could know that Liu Yi also had a military weapon Falcon Flying Feather in addition to the first time. Once the eagle found the movement of the crowd, it would notify Liu Yi in a unique way of communication between it and its master, and many times it was through this that Langsheng could deal with it in advance!

Of course, a falcon like Feiyu is extremely difficult to cultivate, and only Liu Yi can communicate with it fluently, which is extremely envied by those Wuhuan people who know the method of boiling eagles. But not everyone can have Liu Yi's talent, in the Yan army's drill outline, the prevention of ambushes when marching is an important topic, Liu Yi can not be equipped with a falcon like a flying feather for no general of the army, but the word caution is something that everyone can do, of course, there is the condensation of everyone's experience, and observing the terrain at any time is the first thing!

The terrain in front of you is too suitable for the ambush strategy, once you lead the army into the official road between the mountains and forests, you will put the Chang'an battalion soldiers between the two sides, it is quite a dangerous thing, in the marching details of the drill outline, such terrain is clearly listed to be guarded against, through countless drills have almost become the instinct of the generals of the unified army, naturally there will be a corresponding countermeasure, Zhang Xiu immediately launched the action after a little observation.

Ma Dai's Sizhou battalion cavalry divided into more than 20 horses and rushed to the official road, to the right side of the dense forest and other search forward, and behind Zhang Xiu also turned out a team of infantry sergeants to drive to the left side of the official road, when the straw and other things that covered the cart were unloaded, several small bombardment cannons appeared on it! At the foot of the mountain, the soldiers began to prepare the round stones and equipment the size of a human head to be fired up the mountain, although the size and power of these stones were not comparable to those used in the giant cannon, but they were enough to explore the way!

At the time of the reorganization of the main force of the eight infantry armies of the Yan Army, the cavalry battalion and the equipment battalion were the latest additions, and as the last Chang'an battalion to be reorganized, it would naturally have the configuration of these two battalions! In addition to being a sharp weapon for attacking fortifications, another use of the equipment battalion is to explore the way, which is also an effective method that Liu Yi, Guo Jia, Xi Zhicai and Li Tieniu, the commander of the Vermilion Bird Battalion, have explored after many times of research and practice. After countless improvements in the equipment institute, this small bombardment cannon can be perfectly controlled by only two well-trained equipment battalion soldiers, and its range and power have also been greatly improved, and now these machines in front of Zhang Xiu can throw more than ten catties of cobblestone to a hundred steps away, which is just similar to the range of ordinary crossbowmen!

With a huge momentum, these stones may not be able to destroy the fortified city, but it is fatal to the human body, so the terrain wants to ambush the bow and arrow is the best choice, in order to increase the effect of the ambush, under the premise of hiding their own tracks as much as possible, the ambush soldiers must be as close to the battlefield as possible in order to exert the maximum power of the arrow, here should not escape the precise calculation of the instrument, unless the enemy has the same strength as the White Tiger Battalion Cloud Piercing Bow, Otherwise, the crossbowmen used as ambushes will be within range of the small cannon! The use of technical arms has increased not only the ability of the armies to attack fortified positions, but also the ability to defend them.

Obviously, these equipment battalions, which had spent a lot of energy on King Yan and the equipment, had played a role in exploring their paths today, and as dozens of flying stones hit the mountainside, the occasional screams proved that Zhang Xiu was right to be so cautious. And at the moment of detecting the enemy's ambush, those equipment battalion soldiers and Sizhou battalion cavalry also began to retreat very quickly, here Zhang Xiu gave an order, more than 10,000 Chang'an battalion soldiers neatly laid out the formation of the enemy, the whole series of movements appeared to be extremely smooth, it can be seen that the Yan soldiers and soldiers are strict in their daily drills!

Zhang Xiu should have been able to find out where the enemy ambush was, but at this time, his face was extremely solemn, who would ambush him here? It will definitely not be the Yizhou army, and the enemy army is only one under Cao Cao's command, and their ability to come here to set up an ambush shows that Zhang Xiu and Zhang Hu, including Liu Yi, are unwilling to accept the fact, Jia Meng Pass must have fallen into the hands of Cao Jun, Zhang Xiu of course at this time is not clear how Cao Jun captured Xiongguan in such a short period of time, but this ending is already the worst situation that King Yan and the military advisor can predict, and I don't know what his senior brother is in now!

The ambush was recognized by the Yan army, and the Cao army naturally no longer covered it up, the mountain on the left and the forest on the right immediately appeared in the figure of the Cao army, and a large group of soldiers also came on the official road opposite, and the leading generals were no strangers except for the yellow-bearded boy Zhang Xiu, the commander of the Yanzhou battalion Xiahou Dan, and the commander of the Flying Bear Army Dian Wei Xu Chu, from this point of view, the judgment of the Yan King and the military division was extremely accurate, and Cao Cao let Liu Zhang escape was indeed intended to be in the place of Jiameng Pass! Look at the Cao army here is afraid of no less than 30,000 people, but also double with themselves, this must be a strategy that has been arranged, if the Chang'an battalion carelessly enters this official road, and encounters a surprise attack by the other party in a hurry, the consequences can be imagined, that is, the enemy army in front of them also gave up the idea of striking at the Chang'an battalion, even if the ambush plan was discovered, they were still in the upper hand!

Zhang Xiu was right, of course, this is one of the strategies planned by Cao Cao and a group of strategists, of course, the ambush of his move is based on the smooth capture of Jiameng Pass, and after besieging and killing the 20,000 elite Shu troops under Zhang Ren Yan Yan in the place of Wangcang, Xiahou Dun led the army to Xiongguan non-stop, with Liu Zhang in hand and the Yanzhou battalion soldiers all changed into the clothes and armor of the Shu army, Xiahou Yuanrang's order to defraud the city is a matter of course! After that, Cao Jun made another poison plan, and turned his eyes to Zhang Xiu's Chang'an battalion army, so they would not let go of such a fighter.

A few successive moves, Cao Cao's plan can not be described as refined, Xiahou and Sima Yi's improvisation is also extremely ingenious, but obviously Zhang Xiu's prudence and the Yan army's usual hard training make their plan can only be said to be successful.