According to the investigation of Yusukan Bingwei, the Yuan Shao tunnel in the West Gate dug by Xu You's troops has three exits in the Lunu County city, all within the houses near the barracks. The exits of the three tunnels are within a 30-meter range, about 10 meters apart.

The preset exit method of Yuan Shao’s troops should be to mobilize troops to enter the tunnel more quickly. The tunnels connected to the three exits are almost parallel and gathered together five or six miles outside the city.

The tunnels after the convergence are not single-way roads, but there are various roundabouts and nodes around the main roads, which are used for soldiers to hide or defend, and the structure is very complex.

This investigation of Yusukan's military guards also confirmed the situation that Xu You mentioned earlier that the Yuan Shao tunnel connected to the underground river. It can be explained that Yang Rui conducted a water attack outside the south city gate and could not work.

Judging from the investigation of the Yusukan Bingwei, the tunnel outside the west gate of Lunu County can accommodate two or three thousand tribes. The number of Yuan Shao tribes who are squatting in the daily life is more than 1,000. It is very difficult to pass silently.

Therefore, the best way is to let players such as Dragon Soul control the three tunnel exits in the city, and even clear the daily squatting members of Yuan Shao in the tunnel inside and outside, and transfer more of their own troops into the city as secretly as possible.

Then choose the nearest Lunu County City to control it. As long as you control it, there will be no difficulties in the remaining things.

However, the density of Yuan Shao's troops in Lunu County was extremely high, and it was very difficult to achieve this with limited military strength. Therefore, it was necessary to create a more complex environment to confuse the guards in Lunu County.

With the current methods such as Yang Rui's flying pet unit airdrop fire attack, cloud ladder crossbow arrow attack, etc., it is obvious that all the defensive troops in Lunu County will be moved and attract most of the attention.

While Yang Ruitong ordered his soldiers to continuously create aviation bombs and ladders, he was actually waiting for Zhang Ning's arrival. The power of the sky spirit fire rain was incomparable to aviation bombs, or it could not be supported by Lu Nu and Yuan Shao's defenders without the need for tunnel attacks.

Of course, everything is absolutely absolutely true. Regardless of whether Zhang Ning's Tianling Fire Rain attack can work, attacking Lunu County through the tunnel is also an effective option. After detailed discussions with Guo Jia, Xu You and others, they informed the preliminary intention of siege * Dragon Soul to prepare in advance to communicate the power of players in the city and cooperate at that time.

Before Zhang Ning arrived at Lunu County, he was only on the way to arrive. The news that Liu Biao in Jingzhou continued to use troops came in advance. After several days of delay in holding the troops, the three troops sent troops to the direction of Yuzhou again.

It’s not that Liu Biao’s envoy had successfully contacted Liu Dan. In fact, the reason why Liu Biao sent out an envoy had his own intention. He held down the three eastern expeditions to prevent things, while sending an envoy was to gain time.

During the period when the messenger kept asking for Liu Dan for several game days but failed to reach it, Liu Biao had mobilized a large number of troops to strengthen his defense. Although he was unable to communicate with Liu Dan in the end, Liu Biao also had confidence in his own defense.

At the same time, Liu Biao is not a simple person. At the first time when Liu Dan was intimidating his troops, Liu Biao thought of communicating with his subordinate Liu Zhang, and actually got in touch with him and reached a series of material transactions. This was his greatest confidence to send troops to Yuzhou again.

However, Zhang Ning's arrival did not take too long. After two more game days, Zhang Ning arrived in Yang Rui's formation on a modified four-carriage carriage, and six or seven game days passed.

If Zhang Ning hadn't had his second childbirth at this time, his body was still a little weak, and using a flying pet would have greatly shortened the time he arrived, but Yang Rui did not allow him to do that.

Although Yang Rui was eager to capture Lunu County at this time, he was not so anxious. Moreover, within these six or seven game days, Yang Rui was also preparing siege equipment such as aviation bombs, rushing cars, etc., which were important factors in siege.

By the time Zhang Ning arrived in Yang Rui's formation, Yang Rui had accumulated more than 50 rushers and a large number of aviation bombs, and had never interrupted the harassment of Lunu County. The rounds of flying pets had never stopped dropping bombs, and from time to time, he would pull out increasingly larger rushers to shoot against each other.

This made Yuan Shao's tribe in Lunu County extremely anxious, especially Yuan Shao himself. Although he knew that these methods would not cause much threat, he was not much better and would get furious at any time.

In fact, Yuan Shao also understood the importance of military morale, but he could not control his emotions at critical moments, especially after being angry with Yang Rui once last time, Yuan Shao's temperament was even more popular and his control was reduced a lot.

"Si si si si si si hu boo?"

""

After Zhang Ning arrived, Yang Rui knew that the battle in Lunu County had reached the most critical moment, so he wanted to use all kinds of means to directly take down Yuan Shao's old nest, but before that, Zhang Ning was arranged to conduct an attempted attack.

"Si si si si si si hu boo?"

""

On the flying pet unit, Zhang Ning Tian Linghuo Rain was deployed backwards. It was not as impossible to change the route as before when using the Tao Feng Fei Carpet, but could make the flying pet adjust the direction at any time as needed. Yang Rui also used the flying pet to fly aside.

The sky spirit fire rain, which was as big as a fist, fell like raindrops, and rushed towards Yuan Shao's old nest Lunu County City, as if it could turn the city into a sea of ​​fire in the next moment. This situation has not happened before.

However, at the critical moment, a cloud of sound sounded in the hearts of many people inside and outside Lunu County. It was not heard by mortals. Then a milky white hemispherical rain cover enveloped the entire Lunu County. The rain of fire hit the rain cover, like rain hitting the banana leaves. The trembling waves were still unable to enter at all!

Another defensive formation! Just like when Yang Rui attacked Luoyang Imperial City, a defensive formation also appeared above Lunu County City, which seemed to be at least at the same level as the formation that Cao Cao blessed in Luoyang Imperial City.

Zhang Ning, who was using the Sky Spirit Fire Rain, looked at Yang Rui, and did not expect the situation in front of him to appear. The targets he used to control the flying pet were the city walls and the military camps. He never thought that the entire Lunu County City was now wrapped in formations.
Chapter completed!