(There is one more update around twelve o'clock, the last week of the new book list, I hope to continue to stay on the list!) I would like to ask for your support!)

The construction of the Sui Tong Pass City is much taller and more majestic than the Han Tong Pass City, and the terrain on which it depends is more dangerous, and the main thing that adds momentum and danger to the Sui Tong Pass City is the forbidden ditch in the southeast direction of the city.

The forbidden ditch is actually a wide mountain trench, which can also be said to be a river in the mountains, but there is very little stagnant water or flowing water at ordinary times, unless it is heavy rain from the sky. If it rains heavily, the forbidden ditch will become a river. The average width of the forbidden ditch is about six or seven zhang, and the shallowest point also has zhangxu, the Sui Tong Pass City is built according to the west side of the forbidden ditch, and the rebels assembled on the southeast side of the forbidden ditch want to launch an attack on the Sui Tong Pass City, they must cross the forbidden ditch to reach the city wall.

The city wall of Sui Tong Pass City is about three to four zhang high, plus the depth of the forbidden ditch, it is about six or seven zhang, that is, about twenty meters high. There is not much foothold under the city wall, there are not many places to set up cloud ladders, the west of the forbidden ditch along the mountain that protrudes from the city wall, the beacon tower of the twelve cities is built, the twelve o'clock city is built to highlight the city wall, and the siege men and horses who cross the forbidden ditch can be attacked by the waist.

But now there are still many corpses in the forbidden ditch that have not been cleaned up due to the heat of the day, emitting a disgusting smell, these corpses are piled up to a certain height, which makes the defense ability of the multi-section forbidden ditch natural danger decrease, the height of some places is only less than one zhang, and two people can go up to the west edge of the forbidden ditch by holding each other. The rebels will certainly take advantage of this situation and concentrate their forces to attack the head of the south gate in the direction of the forbidden ditch.

The east gate of Sui Tong Pass is some distance from the forbidden ditch, and there are some steep mountains between the city wall and the forbidden ditch, and the rebels want to attack the city head by climbing these mountains, which is no less difficult than climbing to the sky. That is to say, only the winding and winding road outside the city gate was a passage through which the rebels could attack, but the section of the forbidden ditch that was not clearly visible at the head of the city and the bank of the Yellow River connected with the forbidden ditch about five or six hundred steps away from the city wall was very gentle, and a large number of men and horses could be gathered, and the defenders on the head of the city could not hit it with bed crossbows or other weapons.

The flat area by the Yellow River outside the East Gate would be a place for the rebels to masse their forces on a large scale.

The rebels will definitely launch a large-scale attack on Tongguan City from the direction of the east gate, but it is unlikely that the number of troops attacking the head of the city will be large.

The north gate of Suitong Pass is the same as the north gate of Hantong Pass, built along the Yellow River, and there are dangerous mountains nearby, the rebels can not gather a large number of troops below, and can only attack the city on the scale of hundreds of people at most, and basically cannot pose a threat to the defenders on the city, unless the defenders on the city sleep collectively, or all withdraw. There was no way to organize men and horses under the city to shoot bows and arrows at the defenders at the head of the city.

The west gate turned his back to the direction from which the rebels came, and the men and horses from the direction of Chang'an entered and exited Tongguan City, unless the rebels came from the direction of Chang'an.

No matter who commanded the attack on Tongguan, as long as they came from the direction of Luoyang, they would definitely attack from the east gate and south gate of Sui Tongguan City, and Cui Qianyou, the deputy marshal of the rebel army who commanded the siege of Tongguan, also decided in this way, and immediately issued the order to attack the city after Li Qian and Cheng Wei led the remnants of more than 3,000 men and horses to the direction of the east gate and the south gate. Cheng Wei attacked the east gate of Tongguan, and Li Qian attacked the south gate.

Li Qian and Cheng Wei, who received the order, did not dare to delay anything, and immediately ordered the men and horses that had just been assembled to attack the city head in turn.

When the two generals gave the order, they were very sad in their hearts, and their thousands of outposts were destined to die in the battle under the city of Tongguan.

Li Qian's order preceded Cheng Wei, and with his order, the first team of hundreds of sergeants quickly rushed to the forbidden ditch with a ladder.

The east edge of the forbidden ditch is not a straight up and down mountain trench, the slope is relatively gentle, the attacking side can rush to the low of the ditch without a lot of effort, but the slope of the west edge of the forbidden ditch is very steep, unless you use a rope or a ladder, it is difficult to climb to the edge of the ditch, and if you climb with your bare hands, you may fall down from the half-slope and fall into the fate of serious injury or death.

The first function of the ladder in the hands of the rebels who rushed into the ditch was to help them go up to the west edge of the forbidden ditch, and then use the ladder to ascend the city.

Just a while after the order was issued that Li was holding a shield in front of him, carrying a ladder to the bottom of the ditch, and preparing to use the ladder to climb the west edge of the forbidden ditch, another group of men and horses commanded by Cheng Wei also began to attack in the direction of the east gate of Tongguan.

Hundreds of rebel sergeants, shields in their hands, howled along the winding road into the city, and began the assault on Tongguan City.

The follow-up men and horses under Cui Qianyou's personal command are rapidly arriving, and the first men and horses are following Li Qian and Cheng Weibu to Tongguan City. The way Cui Qianyou was prepared to attack the city was still the same as the attack on Hantong Pass, that is, continuous charges, regardless of the cost of death, in the way of wheel warfare, to consume the strength and arrows of the Tang army at the head of the city. He did not hope to attack the head of Tongguan City when the Tang army still had the ability to resist, but hoped that when the Tang army had no strength to shoot arrows and slash and kill, he would attack the city with more troops and rush to the city in one go.

In the morning, too much time was spent in Hantong Pass, and neither Cui Qianyou nor An Qingxu was too sure about whether they could capture Suitong Pass, the last pass of Tongguan, today. But An Qingxu has already given a death order, no matter how much it costs, he must capture all the Tongguan City. did not occupy all the Tongguan City, and he vowed not to stop.

Cui Qianyou also ordered the sergeants to take turns to attack the Tang army on the head of the city without any pause.

The battle will be fought from now on, and it will continue even after nightfall, no matter what method the Tang army uses to defend, even if it is a large-scale fire attack, it will not be ignored, unless the entire pass of Tongguan falls into their hands, otherwise the war will not stop.

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Yang Xi, who was standing at the head of the East Gate City, watched coldly as the rebels in the distance slowly assembled, and then launched an attack on the direction of the East Gate and the South Gate with hundreds of people.

Seeing that the rebels had not all assembled, they launched an attack on the east gate and the south gate, and Yang Xi immediately understood the meaning of the rebel commander, that is, to continue to attack the Hantong Pass to attack the city, at the cost of certain casualties, to consume the energy of the defenders on the city, as well as the arrows on the city.

He was not worried about the lack of arrows in the city, and in the past two days, the arrows that had been replenished had been brought into the city, but he was very worried about the strength of the sergeants.

Most of the sergeants were defeated and retreated from Lingbao, and the 3,000 sergeants he brought from Chang'an were also tired divisions, and the best physical strength should be the 3,000 men and horses that Ge Shuhan did not bring out of the city. On the whole, the defenders in the city are all tired divisions, although the rebels attacking the city are also tired, but they have enough troops to attack in turns, if the follow-up reinforcements do not arrive, the defenders on the city head can not be replenished, Yang Xi knows that the final fate is likely to be the destruction of the city!

However, Yang Xi still believed that the more than 10,000 men and horses under his command were fully capable of repelling the attacks of the rebels until the arrival of reinforcements.

In the cold gaze, Yang Xi saw that the hundreds of rebel sergeants who took the lead in attacking the city had entered the range of the bed crossbow, and he immediately gave the order himself, "The bed crossbow starts shooting!"