Gubeikou is the Great Wall fortress between Shanhaiguan and Juyong Pass, the throat of the Liaodong Plain and Inner Mongolia leading to the Central Plains, it has always been a battleground for soldiers, and it is also the most important pass for the Central Plains Dynasty to resist the northern nomads.

Yang Huaiyu and Hu Yanqing rode on horses and held binoculars to look at Gubeikou in the distance, some time ago their two armies acted separately, and completely conquered the remaining states before, and then returned to the right army that was blocked, completely defeated the military strength of the Liao army in the sixteen states of Yanyun, and then the three armies converged and approached Gubeikou.

Gubeikou is the only place for the Liao army to enter the sixteen states of Yanyun, only by occupying here, the sixteen states of Yanyun can be regarded as completely falling into the hands of the Great Song Dynasty, even if the army supported by Yeluren first, the Great Song Dynasty can also rely on the fortress of Gubeikou to block them out of the sixteen states of Yanyun, but it is not an easy task to conquer Gubeikou.

"Chief, you see that the terrain of this Gubeikou is steep, and the Liao State has not slackened after occupying here, and the passes built are one after another, and there is a water gate across the Chaohe River, it is really not easy to overcome such a majestic pass!" Hu Yanqing looked at the Gubeikou in front of him for a long time, and frowned at the moment, when he attacked Xijin Mansion before, he didn't show such an expression, it was really that the Gubeikou in front of him was too steep, and it was difficult to overcome even with gunpowder.

"It's really difficult to attack, and the general who is responsible for guarding here is Yelu Renxian's son Yelu Tart Buye, after the Liao army of the Sixteen Prefectures of Yanyun that was dispersed by us retreated, almost all fled here, and then was collected by Yelu Tart, plus the original men and horses in his hands, there were almost 60,000 people. Although most of them are remnants of the defeated army, they should not be underestimated. Yang Huaiyu also said with some seriousness at this time.

"I've also heard of Yelu Tart, this person is wise and brave and quite fatherly, and being able to do this position now is not only due to the help of Yelu Renxian, it can be said that he is a very difficult opponent, but what I am most worried about is Yelu Renxian. According to a recent news, it seems that Yelu Renxian's army has reached Zhongjing in the Liao Kingdom, and may reach Gubeikou at any time, and there is not much time left for us. Hu Yanqing said again with a heavy face at this time.

"Since this is the case, then we can't delay any longer, pass on my general order, and attack the city early tomorrow morning!" Yang Huaiyu immediately ordered, the defense line of this Gubeikou in front of him was tight, and there was no trick at all. In addition, time is running out, so it can only be stormed, even if it is a great price to pay, but as long as you can take this place before Yeluren arrives first, then everything is worth it.

Early the next morning, the Great Song army began to storm Gubeikou under the command of Yang Huaiyu, and Yelu Tzu Buye commanded his 60,000 Liao troops to defend various checkpoints, forming layers of defense to defend Gubeikou. That's why. A fierce battle broke out between the armies of the Song and Liao sides as soon as they came into contact, and the Song army used a large number of firearms at the beginning. But even so, the progress of the war was not smooth, and it took seven days to clear the outer defenses of Gubeikou, and it was really difficult to go further.

"Boss, we can't go on like this. There were tens of thousands of casualties just by cleaning up the outer defenses, and if we continue like this, I'm afraid we don't have to wait for Yelu Renxian's reinforcements to arrive, and we will have to retreat because of too many casualties! In the handsome tent of the barracks, Hu Yanqing said to Yang Huaiyu with an anxious face.

"I know. After clearing the last defensive stronghold on the periphery today, the offensive will slow down! Yang Huaiyu carefully observed the sand table in front of him, and said to Hu Yanqing without raising his head, as the commander of the army, he naturally knew that the army had suffered too many casualties in the past few days, but if he didn't clean up the defense on the periphery of the Liao army, there would be no way to implement the next battle plan.

Hu Yanqing was also relieved when he heard that there was no need to attack Gubeikou so recklessly regardless of casualties in the future, in the past few days, his soldiers had suffered countless casualties, these were all brothers he brought out single-handedly, and he was extremely distressed for every death or injury. However, then Hu Yanqing was a little worried about the next battle, and then stepped forward and said, "Boss, then how should we fight next?" No matter how we tempt him, he just doesn't take the initiative to fight, in case the reinforcements of Yelu Renxian arrive, then we will give up all our efforts. ”

Hearing Hu Yanqing's words, Yang Huaiyu beckoned to him with a relaxed smile, and then pointed to the sand table in front of him and said: "You see, the terrain of Gubeikou is special, across in front of us is a continuous mountain range, the Great Wall is built on this mountain range, and Gubeikou is a canyon that cuts off this mountain range, and the tide river flows out of the canyon, Gubeikou is built in this canyon, across the tide river, in addition to the water gate, only one big car can walk on the riverbank, and it is precisely because of this terrain, It makes Gubeikou easy to defend and difficult to attack. ”

"Yes, now that we have cleared the other Great Wall strongholds on this mountain range, only the pass of Gubeikou remains, and the peaks on both sides of the canyon are also heavily guarded, so we can't attack it at all, otherwise if we can lay down the peaks on both sides of Gubeikou, then it will be much easier to attack Gubeikou again." Hu Yanqing looked at the terrain and spoke.

"That's right, in fact, you don't have to shoot down all the peaks on both sides, as long as we can shoot down one, we can put the ballista on the top of the mountain and throw the cannonballs downward, and then it will be much easier to attack Gubeikou!" Yang Huaiyu smiled again and spoke.

"Huh? Sir, do you already have a way to conquer a certain mountain? Hu Yanqing saw the smile on Yang Huaiyu's face, and his eyes couldn't help but light up at the moment.

Seeing that Hu Yanqing finally guessed his thoughts, Yang Huaiyu couldn't help but smile again, and then stretched out his hand and pointed to the mountain peak on the left side of Gubeikou and said: "The name of the mountain here belongs to a small peak on the easternmost side of Wohu Mountain, called Huya Peak, Huya Peak is steep, and there is only a narrow mountain road to go up, but on this mountain road, the Liao army has set up three defense lines, each of which is covered with rolling wood and thunder stones, and it is almost impossible to conquer from the front!" ”

When Hu Yanqing heard this, he also carefully looked at the terrain of Hushan Peak, and found that Hushan Peak is indeed like its name, the peak is steep like a tiger tooth, only there is a mountain road on the south side to the top of the mountain, but it is extremely narrow, except for this mountain road, all other places are cliffs, unless it becomes a bird, it is impossible to climb to the top of the mountain.

"Chief, with the situation of Huya Peak, don't mention a frontal attack, do you want us to take a hot air balloon to raid the defenders on the top of the mountain again?" At this time, Hu Yanqing suddenly spoke again, in his opinion, except for the means of airborne, it was impossible to have any other way to conquer this Huya Peak.

"You don't have to think about it with the method of airborne hot air balloon, since the last time you used the airborne method to capture Xingqing Mansion, the Liao State has been studying the way to deal with it, according to the information I got, there are a lot of strong crossbows on the top of Huya Peak, these strong crossbows are all rockets, although the range of the strong crossbow is limited, but as long as our hot air balloon is close, they will immediately shoot our hot air balloon into a big fireball." Yang Huaiyu shook his head and said.

"The hot air balloon can't get closer, so it can only fly high in the air and drop bombs downward? But this effect is minimal, I'm afraid it's impossible to lay down the Huya Peak? Hu Yanqing couldn't help frowning when he heard this.

"Haha, Brother Qing'er, you guessed most of the time correctly, but instead of throwing bombs down, you threw something else!" Yang Huaiyu was also a shimmering Dao at this time, if he was not forced to do so, he would not be willing to use this method, but there was no morality on the battlefield, as long as he could achieve victory, then all means were possible.

At the same time, on an unknown mountain road in the northwest direction of Gubeikou, a large army is winding along the mountain road, Yeluren's first team is in the middle, and his eyes look at the direction of Gubeikou in the southeast direction from time to time, his son is leading 60,000 remnants of troops to block the fierce attack of 100,000 Song troops, according to the recent battle report, the defense of the periphery of Gubeikou has been broken by the Song army, and the pass of Gubeikou can be directly attacked at any time, it can be said that the entire Gubeikou is already in danger.

"Third brother, isn't the tart also fighting with the Song people, are we really not going to rescue?" At this moment, a veteran who was a few years younger than Yelu Renxian suddenly came over and said, this veteran's name is Yelu Zhixian, is the fourth brother of Yelu Renxian, speaking of their five brothers, respectively in the name of courtesy, righteousness, benevolence, wisdom, and faith, but his two brothers died early, and now only their three brothers remain.

"No need, I have already sent a letter to Tart Buye, asking him to delay the attack of the Song army as much as possible, as long as we go around to the rear of the Song army and give them a fatal blow, then they will be safe!" Yelu Renxian said in a firm tone, but there was a worried look in his eyes, after all, he also knew that Tart Buye They were actually dragging the Song army with their lives, and they could be wiped out by the Song army at any time, and Tart Bu was also the son he valued the most, how could he not worry?

"But......" Yelu Zhixian wanted to say something, but he opened his mouth but didn't know how to say it, after all, he knew his brother best, and he would definitely not give up on what he decided because of personal feelings.

"Okay, let's hurry up, after passing through this mountain, we will reach the territory of Ruzhou, and then we can copy the back road of the Song army in only two days, and then we may be able to relieve the siege for them!" Yelu Renxian suddenly sighed, and turned around to follow the team without looking back. (To be continued......)