Xu Shao'an's telegram was distributed in the evening, when the battle of Gushankou had been over for most of the day, but Muttel did not stop there. He first asked his subordinates to change into the Khitan uniforms offered by the captives "voluntarily", and then handed over the captured more than 10,000 Khitan soldiers to the first regiment and two battalions of the "Flying Dragon Army" led by Wang Feng and the 3,000 people of the original Yuguan defenders who were temporarily reorganized - the performance of the "Flying Dragon Army" in Yuguan has completely shocked the original Yuguan defenders who had surrendered, and they will not be afraid that they will rebel, and then led the main force of the cavalry regiment and the "Ranger Battalion" all the way north, chasing the tail of the Khitan cavalry who had slipped through the net. Rushing in the direction of Runzhou, intending to take advantage of the chaos caused by the defeat of the Khitan army, earn Runzhou and even move to Zhou, and add to the battle of Yuguan (Shanhaiguan).

When he led the army to follow a real Khitan defeated army of more than 100 people to Runzhou City, the local Han Zhizhou and his civil and military officials hurriedly exchanged a few words with the defeated soldiers of the real Khitan in front, and then opened the city gate in the other party's scolding and threats, and put this group of leather room palace guards cavalry they could not afford to provoke into Haiyang City. Seeing that there was an opportunity, Mutel naturally grasped it, and immediately ordered the whole army to rush forward, taking advantage of the fact that the soldiers guarding the gate could not figure out the situation for a while, and regarded them as Khitan defeated soldiers, neither pulling the drawbridge nor closing the city gate, and rushed into Haiyang City in one fell swoop.

After entering the city, Muttel divided his troops to capture other city gates, and on the other hand, he personally led his personal guards and the elite of the "Ranger Battalion" to the city, and captured the officials and soldiers of Runzhou and Haiyang County, who had been completely confused by the situation in front of them, and under the "full cooperation" of the other party, they occupied Haiyang City almost bloodlessly. As for the more than 100 defeated True Khitan soldiers who ran in front of them, after discovering that the situation behind them had changed, they didn't even stop their horses, and went directly through the city, rushing to the north gate in a fit of anger, ready to order the soldiers guarding the gate to open the north gate so that they could continue to run. It's a pity that the horses in the city can't run as casually and as freely as they want outside the city, and the speed of their running to the north gate is much longer than they imagined. As a result, before they could "convince" the bewildered gatekeepers to open the door, a group of "rangers" had already caught up. With the volley of rifles and machine guns fired by this group of "rangers", not only did they annihilate all the defeated Khitan soldiers who had managed to escape from the mountain passage that was like a ghost gate in the lonely mountain pass, but also took over the control of the north gate of Haiyang City very smoothly from the guards who had been frightened by the volley like a storm.

From leading the army to storm the south gate of Haiyang City, to occupying its four gates and controlling the situation in the city, it took only half an hour for Muttel and his more than 2,000 cavalry to stage a beautiful show of "going to see and take Runzhou". Therefore, when Qian Yuanshan ordered him to return to Shanhaiguan immediately through the radio, he had already decided to make persistent efforts and was ready to capture Qianzhou in the same way. However, if he is not happy, as his superior in terms of operational command, he still has to carry out Qian Yuanshan's orders. Therefore, the hesitant ambition of Muttel told the officials of Runzhou and Haiyang City, who were captured by him in one fell swoop and are still in panic, that the Han people should be oriented to the Han people, the Khitan people are "rabbit's tail can't grow" on the territory of the Han people, and one day the "Wang Shi" should be submitted in time when he goes north, and stood on the north gate of Haiyang City, and after taking a few fierce glances in the direction of moving to the state dozens of miles away in the north, he had to wave his hand and lead his subordinates to hurry back to Yuguan.

Of course, Qian Yuanshan ordered Mutel to return quickly, not because he distrusted the strength of Mutel and his cavalry, nor because he was afraid that his old brother would take too much credit and surpass him. The reason why he hurriedly transferred Mutel's troops back was entirely because of Xu Shao'an's introduction to the situation at Juyong Pass in the telegram, and his concern about the possibility of the Khitan army sneaking up on other small passes. …,

According to Xu Shao'an's telegram, the one who led the army to attack Juyong Pass this time was Yelu Tartlie, the king of the Khitan Southern Courtyard who was only in his forties and was now nearly sixty years old. According to the historical records of the previous life, Yelu Tart Lie has made achievements in both civil and military affairs. In civil affairs, he was enslaved, persuaded to cultivate, and the subordinates were turned into people, so that the household registration under his rule was abundant, so that Yelu Wuzhi, who was a famous Khitan minister and the king of the Northern Court at the time, was called "the king of the rich people" by the ministers of the court. Militarily, he was quite popular with his subordinates because of his clear rewards and punishments, and led the Khitan army to support the Northern Han Dynasty many times as the capital of the southwest province, and made many military exploits. This time, Yelujing handed over the heavy task of attacking Juyong Pass to him, which also shows his trust in his ability.

In the first encounter with Xu Shao'an, this Yelu Tart Lie also had a good performance. The officers and men under his command are not only brave in battle, but also have a strong ability to adapt to firearms. When their first attack was in the iron triangle defense network composed of the three major defensive weapons of "machine guns, trenches, and barbed wire" - Xu Shaoan did not have to try to stabilize the enemy like Qian Yuanshan, so at the beginning of the defense of the city, but put his "Flying Dragon Army" into battle - the front was blocked and suffered heavy casualties, it did not collapse as quickly as his comrades in Baoxingzhuang or Yuguan, but continued to stubbornly siege the city, until Yelu Tart Lie took the initiative to withdraw his troops, they stopped the attack and returned to their own position. And when Xu Shao'an took advantage of the opponent's unfavorable siege and unstable foothold to mobilize dozens of various artillery pieces in his department and began to bombard the Khitan army camp, Yelu Tart Lie did not become panicked like some Khitan generals and did not know how to respond, but quickly led the army to transfer and moved his own camp from three miles away from Guancheng to five miles away - because the artillery in Xu Shao'an's hands was mainly field artillery and mortars with a relatively close range, so when Yelu Tart Lie quickly retreated, Xu Shaoan, who had only some 100-millimeter mortars able to reach the left side of the opponent's battalion, had to stop the shelling, so as not to be deduced by the other side from the range of the "Flying Dragon Army" artillery...... Without the enemy's artillery fire, Yelu Tzulie's men were much more relaxed when they re-encamped.

encountered a truly talented figure like Yelu Tartlie, and the opponent's army had more than 50,000 people, Xu Shaoan had to deal with it carefully. When the opponent's main force was still a long way away from Juyong Pass, he had already sent a large number of scouts and cavalry, and issued orders to the agents of the "Dark Feather" branch near the left side of the battlefield, asking them to go all out to investigate all the situation of the Khitan army outside the pass. As a result, the information was quickly fed back - although there were 50,000 Khitan troops under Juyong Pass, there were only 30,000 Khitan elite cavalry troops, and the rest were temporarily transferred villagers. In other words, so far, the whereabouts of more than 20,000 Khitan elite cavalry troops are unknown. The 20,000 Khitan elites may attack any or several of the dozens of passes between the thousands of miles of Great Wall defense line from Juyong Pass to Yuguan at any time, but the defenders of these passes are very limited, ranging from two or three hundred to less than a thousand, and they are mainly "security forces". The Gubeikou Pass, which was considered to be the most likely target for a sneak attack, had a total of less than 500 defenders, of which the "Flying Dragon Army" had only one company of the "Wolf Tooth Battalion" (reinforced with a three-gun 82mm mortar platoon). Although in the eyes of former opponents, the "Flying Dragon Army" equipped with advanced firearms can be used as a ten or even a hundred, and the "Wolf Tooth Battalion" as an elite special force of the "Flying Dragon Army" infantry is even more powerful. However, neither the brothers of the Military Department nor the members of the committee, including Wang Kunjun, believed that with less than 500 troops, of which the "Flying Dragon Army" was less than 200, they could confront the 20,000 elite Khitan head-on.

On the one hand, the Gubeikou Pass is much smaller than the Yuguan Pass or the Ju Vulgar Pass, and the advantages it brings to the defenders and the disadvantages to the tackling parties are relatively limited. The difficulty of the defenders of less than 500 men to resist the attack of the 20,000 Khitan army was conceivably difficult to resist the attack of the 20,000 Khitan army, relying on the Guancheng, which was much lower than the Juyong Pass and Yuguan, and the much more dilapidated Great Wall walls on both sides, even if the attacker was not a Khitan cavalry who were good at attacking the city. …,

On the other hand, due to the initial misjudgment of the enemy's situation, the military department has always focused its defense on Juyong Pass and Yuguan Pass. Not only have they deployed heavy troops at these two points, but they have also leaned towards these two passes in terms of the supply of weapons and ammunition. While this made the two passes impregnable, it also limited the ammunition supply to the defenders of the other passes. The ordinary infantry of the "Wyvern Army" defending these passes were only issued with one base (one hundred and fifty rounds) of ammunition to carry with them, and there was no ammunition for their secondary replenishment; 3,000 rounds were issued to the heavy machine gun group and 1,500 rounds to the light machine gun group. Similarly, the ammunition of the artillery had only one base number (twelve rounds). Even as an elite special forces, the ammunition of the "Wolf Tooth Battalion" is more than that of ordinary infantry units, but if the ammunition consumption and the number of enemies destroyed in the previous battles are taken as the benchmark, such ammunition is only enough to annihilate about 5,000 enemy troops, and it is obviously insufficient to fight against 20,000 enemy elites.

On the surface, since they realized that their defenses were insufficient, the crossing team should immediately deploy troops to strengthen the forces at Gubeikou Pass. But in fact, neither the brothers of the Military Department nor the members of the committee dared to give this order. Because, although from the analysis of the situation in all aspects, all the brothers of the crossing team believe that the target of the Khitan army's sneak attack should be Gubeikou, but before the other party really makes a move, no one can be 100% sure that the Khitans will not play another trick of attacking the east and the west, and turn the spearhead of the sneak attack to other passes. Therefore, after some discussion and weighing the pros and cons over the radio, the members/alternate members of the committee and several senior generals of the Ministry of Military Affairs -- Qian Yuanshan, Zeng Zhilin, Tang Chao, Huang Hai and others -- decided to use static braking and preemptive strike. At this stage, there will be no additional troops in Gubeikou for the time being, but a capable mobile Liliang will be organized to swim between Yuqian and Juyong Pass, so that it can support the pass that has been attacked by the Khitan army at any time.

As for the composition of this mobile liliang force, the brothers who participated in the discussion were very unanimous and agreed that it should be composed of cavalry units of the "Flying Dragon Army". So, less than an hour after "taking Haiyang from the horse", Mutel had to abandon the city he had just arrived, and led a group of cavalry to return to Yuguan overnight.