The secret man was not only annoyed by the siege, but also by the robbery of the Thunderbolt army. Yes, not an assault but a robbery.

The raid on Chengdu obtained a large amount of food and supplies, and the officers and men who tasted the sweetness were highly motivated to fight against the Mongolian army.

When Huang Dagen convened a meeting of the commanders of the naval army and above to study and implement the measures for Ouyang Xuan to attack the stronghold of the Mongolian army in order to reduce the pressure on Hengyuan Fort, some people put forward the suggestion of focusing on robbery and running away after grabbing, which was unanimously supported by all company commanders, and some people added that they should bring a large number of transport ships.

Huang Dagen thought about it for a long time, thinking that this combat method was more flexible and less risky, and it was also in line with Brother Xuan'er's consistent thinking of not fighting at a loss, so he agreed.

However, he repeatedly stressed that only the Mongolian army and its lackeys should be robbed, and civilian supplies should not be looted. It's just that these words caused everyone's unhappiness, and they all said: "This is natural, Brother Xuan said that we should want the autumn wind to sweep away the cold of the leaves for the enemy, and the warmth of spring for the people, but we will keep it in mind." "Just as the Mongol army attacked Yokohara Fort, the Thunderbolt Army also began

"Levy" actions. Although the target of the robbery was the Mongolian army, the word robbery was really unpleasant, so Huang Dagen ordered someone to name the military operation

"Taxation". The Mongolian army, which made a living by burning, killing and looting, was actually killed

"Taxation", if Liu Heima and the secret man knew about it, they would have to spew out a mouthful of old blood. In other words, this kind of reverse operation was realized by the Thunderbolt Army.

Huang Dagen saw the opportunity for the river to rise sharply, and led the water army to attack Anren, Pujiang, Yizheng, Jiangyuan, Dayi and other counties, and even traced the water upstream to capture Huojing County.

Most of these counties are built near the water, or not far from the big river. During this time, due to the fact that most of the new annexed troops were taken away by the secret ones, the defense of each county was mostly a small number of new annexed troops and supplemented by the people to defend the city.

These two devils fled after the warship artillery broke through the city gate, or they slipped away as soon as the cannon fired.

The Thunderbolts did not hesitate, loaded the contents of the city's warehouses onto the ship, and then left, driving to the next target.

For more than half a month, only Qiongzhou City, Chongqing Mansion City and Yongkang City have not been patronized by the Thunderbolt Army and sailors among the prefectures and counties west of the Jinma River.

Qiongzhou City is a salt and iron place in western Sichuan, and it is also a military place to prevent the Song army from attacking western Sichuan from Yazhou, the Mongolian army attaches great importance to it, not only deploying 500 Mongolian cavalry, but also 1,000 new annexed soldiers and a large number of people in the city.

There are four directions of waterway from Xinjin City, the first direction is the Sunan River and its tributaries to the west, leading to Qiongzhou and its subordinate counties respectively, which is also the main direction of action of the Perak Army.

The second direction is to trace the Wenjing River up to Chongqing Mansion City and Yongkang City. The Mongol army placed heavy troops in Chongqing Fucheng and iron chains in the river to prevent the Perak army and navy from supporting Hengyuan Fort.

As for Yongkang City, although it is close to the river, one needs to pass through Chongqing City, and the other is already dilapidated and does not have much oil and water, Huang Dagen is really not interested.

In fact, it was not difficult for the Thunderbolt Army to break the blockade of the river by the Mongolian army, but by doing so, it destroyed Ouyang Xuan's plan to use Hengyuan Fort to consume the Mongolian army.

It is also for this reason that a company of water troops led by Liao Loach hid in Huangjiadang and never moved.

The third direction is to go down the river and attack Pengshan City. Previously, Ouyang Xuan had sent someone to Jiading Mansion to meet Yu Xing and implore him to send troops to divide the Mongolian army.

Unexpectedly, after Yu Xing received a large amount of gold and silver from the Perak army, he refused to send troops on the grounds that the Mongolian army was powerful.

Huang Dagen also sent people to Meizhou to contact Yu Dazhong, Yu Xing's son, to discuss a joint attack on Pengshan City. As long as Pengshan City is captured, it can threaten Chengdu, and it can also open up the trade routes between the Thunderbolt Army and Jiading Mansion and eastern and southern Sichuan.

Although the Mongol army of Pengshan City was suppressed by the Thunderbolt army, the merchant ships could not pass through. Huang Dagen believed that as long as he joined forces with Meizhou, he could easily take Pengshan City, but this Yu Dazhong was also extremely greedy for money like his father, and he was extremely happy when he received money, but he didn't say a word about sending troops later.

The fourth direction is to trace the Jinma River, the main stream of the Min River, to Jiangyuan County, Daojiang County, and Guankou Village. It's just that the Mongolian army also set up iron chains and wooden stakes in the Sandu section of the river, and also built three pontoon bridges over the river to completely block the Jinma River.

These three crossings are the most important crossings and arteries of land and water transportation on the Jinma River. Controlling here, you can trace the river up through Daojiang County to Guankou Village, and down the river is Jiangyuan County.

By land, it leads to Chongqing Mansion City in the west, and to Chengdu City in the east through Wenjiang County. Due to the importance of the geographical location, the Mongol army also stationed 500 cavalry and 1,000 new annexes here to protect the grain route and communication with Chengdu.

Huang Dagen is in Jiangyuan County

After the "taxation", only ships were sent to Sandu Water to reconnoitre, and the brigade retreated to Xinjin City. For the Mongolian army that crossed the water three times, Brother Xuan had already made arrangements, and he only needed to wait for the order.

In more than half a month, Huang Dagen led his naval army to attack seven county towns and more than 10 new annexed army cantonment points under the control of the Mongolian army, and seized a large amount of grain, salt and other materials.

Originally, in addition to supplying the local Mongolian army, these things also had to be transported to the secret fire department of Hengyuan Fort and the Chengdu Mongolian army.

The sheer number of these materials made Huang Dagen's sleep unsteady. The reason is that Xinjin City is not big in the first place, and the existing warehouse simply cannot accommodate so many materials.

Therefore, after robbing the city along the river, Huang Dagen didn't bother to sweep the remaining reclamation points, but put his energy into logging and building warehouses.

Compared with Huang Dagen's happiness troubles, the troubles in the secret fire made him anxious. Under the command of the Jiagu Longgu Belt, the Mongolian army excavated ten tunnels from the earthen wall at the same time.

Although there are many people, the tunnel operation surface is too narrow, and one can only accommodate several people to dig at the same time. The ancient order of the Jiagu Dragon was to dig 24 hours a day, but the progress was still very slow.

The main reason is that the flat land around Hengyuan Fort is alluvial by the river in the mountain, and the topsoil is full of pebbles and gravel, which is not only difficult to dig but also very easy to collapse.

Although the secret Huoli knew that the siege was urgent, the news of frequent attacks in the rear still made him restless.

Of course, a lot of food and grass were stolen by the Thunderbolt army, but he could still transfer it from other places. It's just that even the Thunderbolt Army, whose territory is only the size of a projectile, can't be eradicated, and it will inevitably be despised by other Mongolian generals, and it will also make Möngke Khan re-examine his ability to lead troops to fight, which is more uncomfortable for the secret Huoli than killing him.

Just when the secret one was restless, Jiagu Longgu brought a new military captain to his tent.

The new lieutenant is surnamed Zhu and nicknamed

"Zhu Zhu'er" was originally a bandit leader in the Heming Mountain of Dayi County, and after the defeat of Zhao Shicai's new annexed army in Wanjiabao, the Mongols recruited his bandits in order to make up for the strength of Dayi's defense of the city.

When Pu Zezhi attacked Chengdu, the Thunderbolt army took the opportunity to capture Dayi City, and this Zhu Zhu'er fled back to Heming Mountain before Cao Ergou attacked the city.

After Niu Xuan defeated Pu Zezhi and reoccupied Dayi, he led his men out of the mountains to join the Mongolian army. This time, he came to offer a plan to break the Thunderbolt Army.