(I was wrong, I apologize to everyone here, yesterday's chapter will definitely be made up within this month, Xiao Zhuge will not find a reason for himself, and the debt will definitely be repaid.) ）

Meridian Valley, stretches more than 700 miles from the mountains on the south side of Chang'an to Hanzhong, there are many twists and turns in the middle of the sheep intestine path, the mountain walls on both sides are forested, the trees are dense, only one person can pass through the narrow place, it is to climb high and look far away, it is also hidden under many vegetation and it is difficult to see the whole picture, and there may be many branch roads that do not come out! On that day, Liu Yi remembered that this place was to better take down Hanzhong Zhanglu, so the people of Tian'er Zhongren conducted an extremely detailed survey of this valley under the leadership of Ugo, and came to a conclusion similar to Wei Yan in another time and space, which could indeed be a shortcut to a surprise attack by soldiers!

Now Zhang Lu has been persuaded by Zhang Hu to join Liu Yi, the king of Yan, in the land of Hanzhong, but this method of sending troops from Meridian Valley is still used by Liu Yi and Zhang Hu in actual combat, and the leader who has left since then is Wei Yan, the deputy commander of the Tiger Guard, Wei Wenchang, it seems that God also intends to make up for the regret in this person's heart! Of course, the advantages and disadvantages of it will have to be verified through the actual battle situation in Hanzhong.

If the Cao army's previous offensive against Hanzhong City was compared to a violent storm, the past few days have been even more rainy and windy, and they have completely spared no spare strength to launch the most violent impact on this fortified city, and there is a great tendency that the city will never be broken! Under the onslaught of the other party regardless of losses, the city guards Zhang Liao, Zhang Xiu and others have to go to the front line of the city to supervise the battle and even take the lead, many years of experience in the battle formation make them can see the difference between the Cao army in the past few days, it is very likely that the Yan army successfully won Leping stimulated, Cao Cao also knew in his heart that the battle of Hanzhong could no longer be delayed as before, and he must do his best to defend it.

The siege of Cao's army did not cut off the connection between Hanzhong City and the outside world, even if they could use a strong crossbow to shoot carrier pigeons in the air, but it could only be in the daytime, and even if you had the magic arrows of Tai Shi Ci and Huang Zhong, you had to add Liu Yi's eyesight. After years of information transmission, the people of Tian'er have become extremely proficient in the use and estimation of carrier pigeons, and they can control the time of transmission of messages to avoid Cao Jun's obstruction. And the use of explicit potions and some secret words also makes some letters that fall into the hands of the other party become a piece of waste paper, and the smooth flow of information is extremely beneficial for Zhang Hu, who is sitting in the city, and he will never miss the opportunity.

Thousands of miles away, the news that the Gaoshun Liaodong Army captured Le Pingsheng and captured the defending general Le Jin was also a great encouragement to the Yan officers and soldiers in Hanzhong City. Moreover, Yanzhou in Hanzhong was an inseparable part of the war, and now the gains of the Yanzhou war situation will make the entire battle situation tend to be in the direction of the Yan army.

Forty miles away from the exit of Hanzhong in the Meridian Valley is a rare slightly spacious valley, and there is a small stream meandering in the middle, although this spacious word is only relatively speaking, but it is already an extremely rare camping treasure for the Tiger Guard soldiers between the long trek and the lofty mountains and mountains! When Ugo led people to investigate here, he felt that this was a resting place for the godsend, and now Wei Yan led the army to wait here for the news of Zhang Junshi, as a raid, his understanding of the military situation in Hanzhong was still more than half a month ago, and he must have detailed information and Zhang Hu's further instructions before he launched the operation, if it is not enough, once it is fatal, Wen Chang named it "Wolf Valley" is enough to show his firm heart in this battle.

In another time and space, Wei Yan's idea of sending troops to the Meridian Valley is to send 10,000 troops to attack all parts of the division, and cooperate with Zhuge Liang's frontal army to carry out a two-pronged approach, but among these 10,000 soldiers, there must be 5,000 burdens of grain and grass for military use, which is because the road in the Meridian Valley is narrow and difficult to travel, and ordinary chariots and horses cannot pass through it at all! And no matter how to reduce the necessary grain for light travel, it cannot be omitted, Zhuge Liang's concerns are mostly here, these 10,000 soldiers are afraid that the rations on their bodies are less than three days when they leave the valley, and the combat power can not be regarded as full of troops, what use can they have in the face of such a strong city in Chang'an? From this point of view, Wuhou's consideration cannot be said to be unreasonable.

Zhuge Liang, who has been cautious in his life, did not adopt Wei Yan's proposal from a safe point of view, which is by no means surprising to him, but the foundation of Shu is too weak compared to Wei State, which has two thirds of the world, and a slight carelessness is the situation of ship destruction and death! However, for Liu Yi in this world, there is obviously no such concern, and in various hardware and software conditions, today's Yan Land is not comparable to Shu Han in another time and space, which provides the most solid foundation for surprising victory, although the situation is slightly different from Liu Yi's estimate at that time, but the people's hearts are also the advantage of the Yan army, and the people in Hanzhong occupied by Cao Jun will not give it help in all aspects.

Cao Cao used 300,000 elites to attack Hanzhong, and if he wanted to win this strange army by surprise, he must have enough troops to pose a threat to the enemy's rear while ensuring that his tracks are hidden, and the 15,000 soldiers that Luoyang divided his troops Zhang He gave to Wei Yan are the main force of the Tiger Guard, and most of them have been trained in mountain warfare, and in the strategic planning of the Yan army, there is a plan to seize Hanzhong by force, how can such an elite Tiger Guard be left behind? Although Zhang Lu descended to Cao Cao, he came in handy!

The addition of mountain combat and marching to the training on weekdays is only one aspect of the Yan army's efforts to meet the needs of future wars, and Liu Yi attaches great importance to logistics as always. Wei Yan had 15,000 elite soldiers in his hands, but only 3,000 soldiers transported the accompanying grain and grass, but this less than one-fifth of the number of people could afford the rations of the 15 thousand army for nearly a month and a half! They naturally will not only rely on shoulders to carry the carry, if that is the case, even if 10,000 soldiers carry food is probably only enough for half a month, and the wheelbarrow of the equipment can be said to have made a great achievement, these carefully improved vehicles can be loaded with about 120 catties of fine food per car, a soldier can operate freely through a certain training, especially suitable for the rugged terrain such as the Meridian Valley, coupled with the soldiers' own ability to carry the weight of the march, not only the food and straw can be guaranteed to a certain extent, but the ordnance can also be guaranteed to be basically sufficient.

Whether Wei Yan is a general is a talent in the history books is clearly determined, Liu Yi used it today can also be summed up by a "can", whether it is in the study of the Youzhou Martial Arts Academy or in the experience of the Guards Battalion and the Tiger Guard, the young Wei Wenchang has shown excellent talent and learning talent, won the favor of King Yan and the general Zhang He, and also used his own strength to win the trust of his subordinates, at this time what he lacks is only experience in the war! If it is for the dignified array, Lang Sheng and Jun Yi are afraid that they will be a little cautious, but the strange move they fancy is his momentum!

Starting from Chang'an, marching all the way to the valley less than forty miles away from the exit of Hanzhong under the leadership of the Tian'er guide, Wei Yan only spent a total of 11 days, before leaving, Zhang He's most emphasis is to ensure the speed of the march and pay attention to the continuation of the soldiers' combat strength, and must do the arrival of the battle, the battle can win! Wen Chang also deeply believes this, and has done everything to the extreme in the early preparation of the Heavenly Ear and the Equipment, and the rest depends on his performance.

Naming the valley here as "Wolf Valley", Wei Yan had the intention of breaking the Xiongnu coalition army with a weak victory in his heart, but he waited for three days when he arrived here to rest! As the eyes and ears of the Yan army, the organization of Tian'er has been completely mature in more than ten years of development, although the strategy of the Meridian Valley surprise attack was temporarily shelved by Liu Yi, but their preparations did not stop because of this, it is between this "Wolf Valley" and Hanzhong City can be transmitted through carrier pigeons, and the whole army here is waiting for Zhang Hu's military order, this strange army must be put into the battle at the most appropriate moment in order to play its greatest effect!

Cao Cao heard that Leping fell into the hands of the Yan army, so he resolutely ordered to launch a fierce attack on Hanzhong City, and had the words to take the city within seven days, on the one hand, it was to boost the morale of the army and show his own intentions, on the other hand, his subtext did not say, if the seven-day attack could not make a major breakthrough, I am afraid that he and his subordinates would have to consider retreating! In the face of the impact of the Yan army's ace Tiger Guard Army and Ma Chaosi's Zhou battalion, Xiahoudun has dealt with it very hard, and in the fast horse letter to Cao Cao, he said that he can block the other party for seven to ten days with all his might, no matter how long it is, he does not have enough confidence, the tactical change of the Yan army is not only the coordination of infantry and artillery for the siege, but also the cooperation between the infantry and cavalry is also full of tacit understanding! Ma Chao Pound's Sizhou battalion is already strong, and once it joins forces with Zhang He, it will complement each other even better!

Once Xiahoudun can't stop the joint impact of Zhang Hema and the two generals, Hanzhong City will return to its previous horn momentum, and with the Tiger Guard Army as the backing, the Sizhou battalion will not be forced back by Cao's army with a dense and impeccable formation as before! Therefore, these seven to ten days will determine the success or failure of the entire Hanzhong war, Cao Cao's order is of course categorical, but the January attack failed to break through the defense of Zhang Hu, Zhang Liao and others in the city, can seven days be enough? I'm afraid that with his self-confidence, he doesn't dare to make too optimistic comments on this, once Hanzhong City is connected with Zhang Hema Chao's army, the battle situation will definitely fall into a stalemate, but it is difficult for him to break the enemy in front of him Liu Yi in Yanzhou is not necessarily so, the strength of the Yan army's ability to attack the fortification has exceeded the previous expectations of Cao Cao and a group of advisers, but at this time they did not expect that Zhang Zicai's plan is not as simple as a stalemate......