In the Battle of Hanzhong City, Cao's army suppressed the power of the Yan army's equipment battalion with the method of smoke attack, so he was able to climb the city tower and fight with the Yan Yun army, bringing the opponent the greatest casualties since the war. After calculating the celestial phenomena, the strategy of continuing to be effective naturally became their next natural method, but this smoke attack strategy only took one day before Zhang Hu saw the flaw, the accumulation of firewood and grass is too time-consuming, and it is just within the range of the Yan army's bombardment cannon, maybe the rocket can't ignite the fire that Cao Jun piled up under the city of Hanzhong, because it can be prevented in advance, but the thunderbolt canister fired by the Xiangyang cannon is something they can't prevent. It is a fire under Yexiong City that clearly reflects Hanzhong City and Cao Ying, which stretches for dozens of miles, if you are the people of Hanzhong looking up, you will find that the sky in the south is red.

However, this move of the Yan army only made the offensive of the Cao army under the city suspended for half a day, and on the afternoon of the second day, the siege soldiers piled up more firewood and grass outside the range of the bombardment cannon and ignited it, which shows that the Cao camp people have a certain psychological preparation for the response speed of the Yan army, and they are also ready to unswervingly implement the method of smoke attack, although the smoke drifting to the city head due to the distance is not as strong as the day before yesterday, but the Cao army with a wide combat space can gradually approach, This continuous southeast wind is not easy to come by, so don't be too sorry.

Under such a battle situation, the casualties of the Cao army began to increase compared with the day before, but compared with the initial situation of being suppressed by the whole line, it has eased a lot, and in order to give greater play to its superiority in strength, the Cao army has launched an attack on Hanzhong City in the south, west and east, of course, the south city is still the main attack direction! The equipment of the Yan army is indeed excellent, but such a sophisticated equipment will definitely be limited in quantity, taking care of the south city on one side, east and west will be lacking, and with the intensification of the war situation, the loss of their ammunition will also rise in a straight line, and here Cao Cao can be said to see very transparently, and there is no hesitation in execution, the first thing he wants to cut off is the Yan army equipment battalion, once this threat disappears, the battle situation will return to the conventional way.

After a whole day of hard fighting, the Yan Yun soldiers also showed a strong adaptability to fighting in the smoke, once the line of sight was blocked, they would not spend energy on the Cao army in the impact at all, but concentrated all their combat power to deal with the enemy army and set up the ladder at the head of the city, when it came to the conventional tactics of defending the city, the Yan Yun army was also the top first-class, and the smoke was the same obstacle for both sides, even if it had a greater impact on the Yan army, but General Zhang's words were right, you would not defend the city without the equipment battalion? There is only one way for Cao Jun to come, fight back!

The attacker is brave, the defender is strong, this battle is the strategic confrontation between the generals of the two sides, but also the competition of soldiers' combat power, it can be said that in the offensive and defensive battle under the city of Hanzhong, the Yan army and the Cao army jointly staged a good enough to be included in the exemplary offensive and defensive battle! After that, the battle situation was stalemate for three days, although the power of the Yan army's equipment battalion was greatly suppressed, but the strength of Yan Yun's sergeants was further revealed, and the only thing that the two sides had in common was the increasing number of casualties!

In the meantime, Cheng Yu offered advice to let Cao Jun dig tunnels at night to strive for direct access to the city gate of Hanzhong to collect the effect of surprise soldiers, so as to avoid the condescending advantage of Yan Yunjun's condescending position at the head of the city, and there are special talents among Cao's army to attack the city in this way! In order to expand military resources for his own use, Cao Mengde did not do less to steal and dig the tombs of the ancestors to obtain the funeral goods, indifferent to this matter in the eyes of ordinary people seems to be against the peace of heaven, he will not do it himself, his own soldiers who specialize in this business, and its leader is also the official position of captain of Faqiu, to put it bluntly, he is a tomb robber! Perhaps it is precisely because of this that Cao Cao is very secretive about his posthumous affairs and has set up many suspicious graves. But now even such a method has been used in the siege of the city, which shows how much he longs for Hanzhong City.

At the beginning, this strange plan really played a certain role, and hundreds of elite Cao troops dug into Hanzhong City in three directions, making Zhang Hu, Zhang Liao and others break out in a cold sweat, and Yan Yunjun also spent a lot of energy to annihilate them all! After all, Cao Jun, as the official army at the time of tomb robbery, had no scruples, but under the city of Hanzhong, they had to be under the surveillance of the Yan army at the head of the city at any time, and had to dig the entrance as far away from the city as possible, and also cover it up with a camp tent, although I didn't know that the other party had a clairvoyant mirror in his hand Such an observation weapon, but its keen sense of smell on the battlefield had already made Cao Ying feel that something was wrong, and the Yan army must have some way to detect their own actions that they didn't know, even if it was unimaginable with the equipment battalion in front, it could not be ignored!

It is precisely because of the distance that the positioning of the Cao army tunnel has a problem, the three tunnels are deviated from the Hanzhong city gate, of course, the difference is not far, if it is not for Zicai and Wen Yuan's vigilance is also extremely high, the Yan army's defense in the inner city is also very strict, when Cao Jun really found the right direction, can quickly annihilate it and ensure the safety of the city gate is still in a dilemma! The positioning of the first time is not so accurate, but it is difficult to guarantee that Cao Jun will not have the second and third times, and they can do this at the same time as the war is going on, if they are joined by the inside, it will be an extremely tricky situation.

Cao Junjian went sideways and made another move, and the Yan army naturally wanted to see the move, but the countermeasures proposed for this authentic method were not Zhang Hu or Zhang Liao, Zhang Xiu and other generals, nor the Yan soldiers and soldiers and civilians in Hanzhong City! Cao Jun's setting of Captain Faqiu is not visible, everything has to be carried out in secret, and it is hidden to the extent that Liu Yi has forgotten it! But there is also a special team in the Yan army that is proficient in this way, of course, their purpose is different from Cao Jun, with such prosperity in Yan Land, the Yan King does not have to do these things that damage Yin morality, these hidden and unexpected methods have only one purpose, that is, to assassinate the important people of the other party, this team is about to come out, Tian'er elite "Shadow", and the response to the other party is the dark two.

First of all, he had Zhang Hu and Zhang Liao's military orders to set up a lot of water tanks in the city of Sizhou, which were reversed to the surface, and through its function of collecting sound amplification to listen to the enemy's movements underground, as long as they could grasp the opportunity to deal with it, the Yan army would be able to wait for the rabbit! Secondly, in the city gate and some other important places, the Yan soldiers dug a lot of steep pits up to two feet deep under the command of the Shadow Lords, the purpose was to cut off the possibility of the enemy army sneaking into the ground! At that time, Liu Yun's main task in training the Shadow was to protect the safety of King Yan and his important ministers, so they had to be proficient in all the ways of assassination first, but Liu Yun would not have thought that the Shadow that he had spent countless efforts on not only had great achievements in guarding the key personnel, but also made miraculous achievements in the attack and defense of Hanzhong City, and it was their response that made Cao Jun fail again.

The method of smoke attack and tunnel excavation are only the two most important of the many methods of Cao Jun in the siege, in addition, what is the sound of attacking the east and west, showing the enemy to be weak, Cao Cao has used all his experience in front of the Hanzhong City, although almost every time he can take advantage of the initiative of the attacker, but the response of the Yan army must also be extremely fast, the same method as long as it is used once, it is difficult to play a role, and the battle between the two sides is also very exciting.

Zhang Liao was originally a good defender, after more than ten days of attack and defense in Hanzhong, not only to fight with Cao Jun on the frontal battlefield, but also to fight wits and courage with its endless tactics, in further enriching his already extremely profound methods of defending the city at the same time, it also consumed his great energy, so that the military division and General Zhang have lost a lot of weight in more than ten days, and now the two of them are on duty in turn, and then Cao Jun can't say that there will be any new tactics emerging, and he must retain sufficient energy to deal with it, The stalemate in Hanzhong will continue further.

Physical fatigue is a part, the mental fatigue between the exhaustion of wisdom can not be ignored, but whether it is Zhang Hu or Wen Yuan and other generals' state of mind or maintain a considerable relaxation, in these ten days between Hanzhong City and the Tiger Guard has never been severed, almost every day Zhang He has to make a detailed report to the military division through the carrier pigeon on his progress, the closer to this place the more so, he and the arrival of the Tiger Guard will be accompanied by a large-scale military operation against the Cao Army, but also the greatest support to the Yan Army defending the city, This requires Zhang Hu to make proper arrangements in advance for the overall situation, and it must be forward-looking, because once the Jun Yi army crosses the Yangping Pass, the contact between the two sides will not be so convenient as it is at this time, and the contact station set up with Tian'er here must be less than that of Sizhou, and the transmission of the news that the city is besieged is almost cut off.

According to Zhang He's military situation, the more than 10,000 elite soldiers led by Wei Yan will enter the Meridian Valley in a few days, and at the last contact station before, Wen Chang will wait for the general order of the military division to determine the main attack direction of his strange soldiers, and the actions of Hanzhong City and Zhang Hema Chao will also revolve around Wen Chang's strange soldiers, the current situation is extremely complicated, there are hundreds of thousands of Cao army elites here, Zhang Hu has to make careful considerations, this is his best hope to reverse the situation!

At this time, Cao Jun did not stop planning for a moment, Cheng Zhongde offered Cao Cao a plan again, Liu Yi, the king of Yan, regarded all the people of the Han Dynasty as his own people, and he would not use some desperate plans when attacking the city, but at this time Cao Cao obviously did not have any concerns about this, he wanted to weigh the question of which is more important, Cheng Yu's strategy was only two words "cut off the water", according to the observation of Hanzhong City in the past month, it can be done or roughly achieved with the strength of Cao's army, there are not only 100,000 Yan troops and Hanzhong soldiers in the city, There are more than 100,000 people, and the daily water needs of these people is huge! If Cao Cao really disregarded his reputation, how should Zhang Hu and Zhang Liao deal with such a desperate plan?