As a fortress, the second city of Dongxing has always been garrisoned by Wu State, stationed in Xiguan at all ends, and stationed in Dongguan for a while, waiting for the battle.

According to Sima Division's plan, it was originally planned to avoid the high heat and humidity of Huainan in the summer, and launch an attack on Wu in the autumn, but due to various reasons, the march was delayed again and again, and it was not until the end of October that the campaign deployment was completed, and when it was in the winter moon, it was ready and officially put into attack.

After all, such a large-scale military operation was carried out in a hurry without any preparation in advance, and the things that needed to be prepared were a myriad of things, so it was really helpless to delay until winter.

Because not only the men and horses of Huainan this way, but also the soldiers and horses attacking Wuchang and Jiangling must be in place, although these two roads of men and horses are only feints and play a role in diversion, but if they can't even play the role of containing the Wu army, this road of people and horses in Huainan is lone and deep, I am afraid that it will be more auspicious and less auspicious. Therefore, after Sima Zhao arrived in Shouchun, there was no way to march immediately, he also had to coordinate with the other two groups of men and horses, to confirm that Hu Fen had launched an attack on Wuchang, to confirm that Wang Chang had marched in the direction of Jiangling, and that it was impossible for Wu's troops and horses in the upper reaches of the Yangtze River to be mobilized downstream.

It stands to reason that in Huainan in November, the weather is still relatively warm, unlike the cold winter in the north, which is already frozen for thousands of miles and thousands of miles of snow, and under such weather conditions, there is no problem in marching and fighting.

But this year's weather, but a little abnormal, after Sima Zhao arrived in Huainan, he never saw the sun, the sky was often shrouded in haze, and from time to time there was a little rain, wet and cold, so that Sima Zhao was quite unaccustomed. Zhuge Dan told him that the weather in Huainan is like this, in winter, rain is common, although it rarely freezes, but compared to the dry and cold in the north, the wet and cold here seems to be more unacceptable.

No matter how capable Sima Zhao is, it is impossible to change God's temperament, all he can do is to finish this battle as soon as possible, and quickly withdraw from this ghost place, now Sima Zhao especially misses the warm pavilion in Luoyang, lights a pot of red charcoal, drinks a pot of warm old wine, has nothing to do, and looks at the glamorous singers singing and dancing, that day is really comfortable.

In this kind of wet and cold weather, I don't feel comfortable wearing any clothes, let alone wearing heavy iron armor, which is too thick, and it is easy to sweat, and when I sweat, it is all cold sweat, wet and sticky to my body, which is even more uncomfortable.

Most of the Wei army came from the north, and they were obviously not used to this kind of wet and cold weather, and they were all complaining and their morale was low.

It stands to reason that in this state, it should be a truce and a halt, and then march after the weather improves, but Sima Shi seems to can't wait, after all, they are going to take advantage of the time of Wu Guoguo's mourning to launch an attack, in fact, it is already a little late to launch an attack now, if you wait until next year, the Wu government and the opposition will recover from the mourning of Sun Quan's death, so that the opportunity to attack will be completely lost. Therefore, Sima Shi, who was far away in Luoyang, repeatedly ordered and urged, asking them to take advantage of the arrival of the cold winter and the moon to take Dongxing and seize the Wuxuwu, so as to create a favorable condition for entering Jianye next year.

The arrow is on the string and has to be sent.

The Wei army marched by land and water, marching south along Chaohu Lake, but the water army was not the strength of the Wei army, so this time to attack Dongxing, the main force of the attack was still the infantry cavalry, the naval army was only responsible for escorting grain and grass and ordnance equipment, and the main infantry force passed through Hefei New City and launched an attack on the two cities of Dongxing.

The two cities of Dongxing are built according to the mountains, the terrain is very dangerous, the Wu army is on the water of the water, and built the embankment, so that the fleet of the Wei army's sailors, after arriving in Dongxing, it becomes difficult to move an inch, only by breaking through the two cities of Dongxing, destroying the embankment of the wet beard, the Wei army can continue to move forward.

Zhuge Dantun's troops were in Chentang, north of Dongguan, and sent the former governor Han Zong and Le'an Taishou Huanjia to lead 5,000 soldiers and horses to attack Dongguan and Xiguan respectively.

The two cities of Dongxing are surrounded by mountains and rivers, the terrain is dangerous, the Wei army wants to attack the city, first of all, it must cross the wet water, Zhuge ordered to build a pontoon bridge on the water, straight to the newly built embankment of the Wu army, after grabbing the embankment, and then along the embankment to the connected Dongguan and Xiguan to attack.

The embankment was originally garrisoned by the troops of the State of Wu, but the number was limited, and when they built the pontoon bridge in the State of Wei, they frequently shot arrows at the Wei army, but to a certain extent, they blocked the speed of the Wei army to build the pontoon bridge.

Zhuge Dan can't see it, even a pontoon bridge is so difficult to build, take Dongxing that has to be the year of the monkey, the 70,000 troops of Wei are crowded in Chentang, the terrain is narrow, and it can't be used at all, and the pontoon bridge must be built as soon as possible to capture the embankment, so as to form an offensive against Dongguan and Xiguan.

So Zhuge Dan mobilized dozens of warships, each of which was full of archers, and concentrated firepower to shoot arrows on the embankment to suppress the defenders of Wu on the embankment.

This trick really worked, the Wei army was ten thousand arrows at once, shooting so that the Wu army guarding the embankment could not even raise its head, so that the progress of building the pontoon bridge was no longer affected, and soon the Wei army built four pontoon bridges on the wet water, and the infantry quickly attacked the embankment along the pontoon bridge.

Wu's army was alone and difficult to resist, so it could only abandon the embankment, retreat to Dongguan and Xiguan, and defend it by danger.

After the Wei army seized the embankment, they launched an attack along the embankment towards Dongguan and Xiguan.

Although this embankment is built wide and thick, it is only a, and it cannot become a wide avenue, and the widest part of the embankment can only accommodate four carriages to pass, so that although the Wei army has many generals, it can only be crowded together due to the influence of the embankment, and the siege strength has become much more limited.

Stay slightly in the East Pass, the whole end is in the West Pass, the two sides can look at each other from afar, the two fortresses built by Zhuge Ke can be called the copper wall and iron wall, the defense facilities are complete, such a strong city is limited even if the number of defenders is limited, and the Wei army is difficult to conquer in a short time. Zhuge Dan ordered a strong attack, the terrain was narrow, and the army could not be deployed, so increase the intensity of the attack, so that the Wei army could launch an attack non-stop for twelve hours a day, and attack in turns day and night.

This way of attacking is to exhaust the defenders, so that they can find out the loopholes in the defense of the Wu army and take the second city of Dongxing.