On the 27th day of the fourth month of the lunar calendar, the crossing team committee made a decision to support the Northern Han and resist the Later Zhou, and the content of the relevant resolution was transmitted by telegram to Yang Xinshang, who was serving as the chief military officer in the Lingxian Mansion. Since this resolution not only involves the supply of important raw materials for the production of the crossing team, but also relates to his brother-in-law Yang Ye, Yang Xin did not delay at all after receiving the telegram, and immediately wrote a letter to Yang Ye to warn his brother-in-law, and hinted between the lines that the Beiping Army was willing to give the Northern Han court the help it could without attracting the attention of the Later Zhou court. Since it was only a hint, the letter naturally could not explain the ins and outs of the matter too clearly, so as to avoid the trouble of explaining to Yang Ye the reason and purpose of the Beiping Army's actions.

Although Yang Xin did not write in the letter that the Beiping Army was going to do this kind of secret "enemy" thing, on the one hand, out of trust in his brother-in-law, on the other hand, this matter was related to the life and death of the Northern Han regime, and since the Battle of Youyun, the Beiping Army and the Later Zhou Dynasty have been in harmony with each other. Therefore, when Yang Ye received Yang Xin's handwritten letter on the first day of the fifth month of the lunar calendar, he did not doubt the reliability of his brother-in-law's letter, and after explaining the defense of Daizhou to his deputy, he left Daizhou with Yang Xin's letter and went straight to Taiyuan City.

Yang Ye's sudden return surprised Liu Jun, the emperor of the Northern Han Dynasty at this time, and he didn't understand that his adopted son Weishenme was not good for Haode to garrison in northern Xinjiang, but he ran back to Taiyuan without receiving the edict. However, the idea of surprise only existed for a moment, and then it was replaced by another frightening thought - the Beiping army sent troops south, attacked the bottle-shaped Qi, Yanmen Pass, and pointed at Taiyuan. As soon as this idea came out, Liu Jun immediately couldn't sit still, and he couldn't care about holding Yang Ye accountable for leaving his post without permission, so he hurriedly ordered someone to announce Yang Ye into the palace for questioning.

Although he was not as often in contact with Yang Xin, who was a member of the crossing team, like his adopted son Yang Ye, and was able to intuitively understand the relationship between the Beiping Army itself and the Beiping Army and the Later Zhou Dynasty from the letters written by Yang Xin, as a relatively diligent emperor, Liu Jun also knew about the countries around the Northern Han Dynasty and various shili. Even if he couldn't know some details and secrets, he was still well aware that the relationship between the Beiping army, which occupied the sixteen prefectures and was the largest feudal town under the Later Zhou Dynasty, and the imperial court was not harmonious. The "Qingyuan" brothers, who led the "Youzhou Righteous Army" to defeat the Liao army and lose their troops, can almost be said to have forced the Later Zhou court and their Chai Emperor to hand over the sixteen states of the Beiping Army to their own hands. The result of this approach, which is similar to forcing the palace, will naturally lead to a bad relationship between the Later Zhou court and the Beiping army, and even secretly oppose each other.

Therefore, when Yang Ye handed over Yang Xin's letter to Liu Jun and told the other party about the relationship between himself and Yang Xin, Liu Jun not only did not care when his adopted son suddenly had such a righteous brother from Youzhou, but was very pleased that his adopted son could make such a friend who was very helpful to the Northern Han court, and also believed that the news of the upcoming expedition to the Northern Han Dynasty in the letter was true and reliable. And the willingness of the Beiping Army to support the Northern Han court from many aspects revealed in the letter made Liu Jun feel a lot more at ease - now the Liao State was greatly injured because of the Battle of Youyun, and in the face of the attack of the Later Zhou army, Liu Jun no longer had any hope for the support of his "godfather" Yelujing. At this time, there was a Shili who had defeated hundreds of thousands of horses in the Liao State and was willing to lend a helping hand to him, and Liu Jun naturally couldn't ask for it.

Of course, while seeing new hope, Liu Jun also understands the truth of "no profit can not be early" and "courtesy must be asked for by others". He knew very well that the Beiping Army had taken the initiative to show favor to himself so generously, and was willing to warn himself on the charge of communicating with foreign countries and aiding the enemy army, and that it intended to provide himself with support in various aspects. In his opinion, in the future, such a discordant relationship between the Zhou court and the Beiping army, coupled with the concern for the safety of his brother who became a righteous brother, although it was reasonable for Yang Xin to send a message to Yang Yefeng, if Yang Xin and his brothers did this only for these reasons, he Liu Jun would never believe it—even if Yang Xin did not mention any prerequisites in the letter. …,

Liu Jun, who had read Yang Xin's letter, handed the letter back to his adopted son and asked, "Although your brother-in-law Yang Xin did not say in the letter the reason why he and his brothers did this, and what price they would have to pay for doing so. However, as the saying goes, 'courtesy must be asked for by others', since this righteous brother of yours and his brothers were willing to risk turning against the puppet Zhou court to report to our court, it was not only because of his brotherhood with you, but also because of the constant discord and incompatible relationship between the Beiping army and the puppet Zhou court. What conditions did Yang Xin have put forward to you, or what kind of demands did he just hint at? ”

"Father, Yang Xin, the righteous brother of Erchen, only sent someone to deliver this letter to Erchen, and there was no other letter, nor did he ask the person who sent the letter to leave any words related to the so-called 'conditions' to Erchen. The righteous brother just asked the person who sent the letter to tell his son, if the son and the court had no objection to the content of his letter, the court would select a minister who was deeply trusted by his father, clear-minded, and down-to-earth to serve as a liaison messenger and go to Lingqiu County, Lingxian Mansion of the Beiping Army. According to Erchen's brother-in-law, this liaison envoy was responsible for transmitting back to Taiyuan the news that the Beiping Army had discovered about the puppet Zhou Northern Invasion Army in Lingqiu County, and on the other hand, conveying the matter that our dynasty hoped for the assistance or support of the Beiping Army to Erchen's brother-in-law, so that the Beiping Army could handle it as appropriate. ”

Speaking of this, Yang Ye paused slightly, and saw that his adoptive father was still pondering there, and did not interrupt his meaning, so according to his understanding of the righteous brother and his class of brothers, and according to some truths he pondered on the way to Taiyuan, he continued to analyze: "As for why the father's righteous brother and his brother came so hard, although the righteous brother of the son did not make it clear to the son, the son thought that the reason why the princes of the Beiping Military Festival Dufu did this was nothing more than two reasons.

First, the Beiping Army and the Puppet Zhou Dynasty looked like they were separated and guarded against each other, and the Beiping Army naturally did not want to see the Puppet Zhou Dynasty becoming more and more powerful and occupying more and more territory. If he shows favor to our Han and is even willing to secretly help our dynasty resist the puppet Zhou army, he will be able to weaken the puppet Zhou army and national strength with the hands of our Han without confronting the puppet Zhou court head-on. If the puppet Zhou court fails in this northern invasion, the prestige of both its puppet court and the puppet emperor will be greatly damaged. The prestige of the puppet Zhou court and the emperor was damaged, so it was definitely a good thing for the Beiping army that separated from it.

Second, looking around the Beiping Army, its north is the Liao State, which is already on the same footing, and the south is the pseudo-Zhou who is full of wariness against it. If our dynasty is defeated by the puppet Zhou, the border between the puppet Zhou and the Liao state will be united, and the Beiping army will be surrounded by the Liao state and the puppet Zhou on all sides. Although the Liao State and the Pseudo-Zhou are hostile countries at present, but as the so-called 'lesser of two evils', in the face of the Beiping Army, which can be said to be extremely strong Shili, whether it is the Liao State with which it has a deep blood feud, or the Pseudo-Zhou who is extremely jealous of its strength and is afraid that the other party will turn its attention to the Central Plains, in order to limit or even eliminate the Beiping Army, it is very likely to release the previous suspicions and join forces to deal with this Shili, which is a great threat to both sides. At that time, the Beiping Army will fall into the predicament of being attacked on all sides and being exhausted to deal with it, which I am afraid that the Beiping Army will never want to see.

With the above two reasons, even if our DPRK does not give any return to the Beiping army, the mere fact that it will not be trapped in the enemy on all sides can make it do its best to support our DPRK in resisting the invasion of the puppet Zhou. Therefore, Erchen thought that the reason why the Beiping Army did not mention the matter of return was not because it had any plans that were unfavorable to our dynasty, but because my dynasty was standing tall and it was the greatest reward for it. ”…,

Liu Jun nodded after listening to Yang Ye's analysis, and said, "What Wu'er said is reasonable. Although the strength of the Beiping Army is extremely strong, it is not easy to compete with the two Shili of Da Liao and Pseudo Zhou with the sixteen states of the Beiping Army, let alone these two opponents joining forces to deal with his family. This puppet Zhou invasion of the north is certainly a life-and-death battle for our Han Dynasty, but it is not a battle to determine the future fate of his Beiping army. From this point of view, it is not surprising that the Beiping army took the initiative to show goodwill to our dynasty and was willing to help our dynasty resist the puppet Zhou. ”

Speaking of this, Liu Jun sighed, shook his head, and laughed at himself helplessly: "Thinking that I am a dignified Han Dynasty, in the face of the enemy's aggression, but secretly relying on the enemy's feudal towns that have a disagreement with my own center to help me defend against the enemy, it really makes me feel shameless and ashamed!" ”

Yang Xinyan was also depressed in his heart, and the hall was quiet for a while, and only the sighs of the father and son could be heard. However, depressed to depressed, in this situation, having lost all kinds of protection given by the Liao State, Liu Jun did not think that he could resist the conquest of nearly 100,000 troops of the puppet Zhou with his own strength, and the decision had to be made quickly. Therefore, after Liu Jun was silent for a moment, he said: "It is a matter of life and death for my Han Dynasty, no matter what the plans of Brother Runa and his brothers are, no matter whether it is glorious to resist the invasion of the puppet Zhou with the help of the power of the Beiping Army, the powerful Austrian aid of the Beiping Army must not be easily given up." I then summoned the important ministers of the court to the palace and discussed the matter with our father and son. ”

After that, Liu Jun sent a decree to summon the important ministers of the court to the palace to discuss.

Faced with the real threat that the Later Zhou army was about to be overwhelmed, in the face of the huge gap in strength between the Northern Han and the Later Zhou, and in the face of the fact that the Khitan "godfather" was already unable to support him, all the civil and military generals of the Northern Han court were basically of the same mind as Liu Jun. After learning that the Beiping Army, which was strong and far superior in force to the Liao State, was willing to secretly help him, all the civil and military forces almost overwhelmingly agreed with Liu Jun's decision to secretly form an alliance with the Beiping Army and resist the puppet Zhou.

As for the candidate for the liaison envoy to Lingqiu to communicate with the Beiping Army, Liu Jun, after careful consideration, sent Guo Wuwei, whom he trusted very much, and at the same time was known for being studious and good at talking and arguing, and was then the counselor of the Northern Han court.

On the fourth day of the fifth lunar month of the fourth year of the Northern Han Tianhui (the seventh year of the Later Zhou Xiande), on the day before the Dragon Boat Festival, Guo Wuwei, who had just been appointed as the liaison envoy between the Northern Han court and the Beiping Army, left Taiyuan with Yang Ye, and went straight to the bottle at the junction of the Northern Han Dynasty and the Beiping Army.