Within five or six days, the envoys previously sent to the Xiongnu and Lou Fu entered the palace to report to the emperor, and Liu Bang was a little confused about this report. It turned out that a few days ago, two Han people disguised themselves as border horse businessmen and then infiltrated the Xiongnu and Loufu respectively. The fine work who entered the Lou Fu country said that he had not seen the king of Lou Fu, and said that there were few patrols in the country of Lou Fu, and there were not many guards on the city outline, and even the garrison army in the city was very few, and asked the stall owners and vendors on the street of Lou Fu country, and they said that the king of Lou Fu was not in the country for half a month, but led a small number of soldiers into the Xiongnu garrison, and the Xiongnu fought fiercely. After a dozen I heard that the Xiongnu had just given the king of Lou Fu hundreds of Meiji, hundreds of cattle and sheep, thousands of tea and iron tools in the Central Plains, hundreds of slaves and many other benefits a month ago, but I couldn't guess what the Xiongnu meant by this.

Liu Bang looked confused, narrowed his eyes, and listened to another person say, after sneaking into the Huns, secretly observing the people who entered and exited the Hun royal court for days, there were indeed people from foreign countries, and at first he guessed that it was the person who Loulan sent his relatives who had not left, and he couldn't tell the difference between Lou Annoying and Loulan people, but he knew that they were dressed differently from the Huns, as for whether it was Lou Annoying or Loulan people, he couldn't be sure. It is also said that not far from the royal court, there is a group of people who are different from the Huns, quite like the herdsmen in the border area of the Zhao Dynasty, they are tall and tall wearing Jin Rui armor and copper helmets, but they look tired, leaving some people to inspect the surroundings, and some people are resting and chatting on the spot, everyone is holding a cloth in their hands to wipe their halberds or knives, even if they are tired, they can not get rid of the slightest fierce and heroic spirit. In five or six days, I only saw a high-ranking general wearing a golden helmet and armor enter the big tent once, and in an hour he hurried to the tent of the Huns. The Han people who went to the Xiongnu stopped here, and there was nothing else to say. Liu Bang sat on the couch and was silent, thinking about the matter in detail, since there were foreign soldiers stationed not far from the Xiongnu royal court, Liu Bang probably guessed seven, seven, eighty, eight, and squinted his eyes to understand the whole story.

The meticulous work that went to the Xiongnu said that when he was about to leave for Chang'an, he heard along the way that Princess Luan had committed suicide recently, crying and hoping that he would keep his promise, but now he did not keep his promise and instigated other countries to attack the Southern Han Dynasty. Shan Yu was the only little sister, so he had to order Lou Fu to withdraw the soldiers. Liu Bang suddenly understood that the tired soldiers not far from the royal court were Lou Fujun.

Princess Luan was also involved, and Liu Bang quickly sorted out the whole thing. After Liu Jing sent Liu Lu to Hu that day, Mao Dun was angry at allowing them to move to Jiuyuan County, but he kept suppressing it, and on the surface he kindly said to Liu Jing that Han and Hun would be brother countries in the future. When Liu Jing had just returned to the dynasty and returned to his life, Mao Dun couldn't hold back the anger in his heart, and then transferred the Lou Fu soldiers to the Xiongnu first, and then quietly went south to Chang'an, breaking through various passes to attack Helan, so that General Guo Ting's news lagged behind, and when he led his troops to go, Lou Fu had already occupied Helan. In this way, Guo Ting came back and asked the emperor to send troops. But when Princess Luan heard that Mao Dun Shan Yu was going to send troops to the Han Dynasty, she immediately entered the Shan Yu Ya tent, looked at Mao Dun angrily, and accused him of not keeping his promise, saying that the Huns' frivolity and arrogance had long been notorious, and now they were going to break their promises to attack the borders of the Han Dynasty. Mao Dun will not listen to Princess Luan's words, and accuse her of doing things badly, originally wanted Jiuyuan County, but did not expect that his sister promised the emperor of the Han Dynasty to move to Jiuyuan County for a year, not only did not go to Jiuyuan County, but also gave the Han Dynasty a lot of benefits, the five hundred cattle, sheep and horses can build a small cavalry army. Harming others is not beneficial to oneself, how can this humiliation not make Mao Dun angry. So he scolded Princess Luan, and said that in the future, the envoys to various countries would never let her go, and told her to stay in the tooth tent and not go anywhere. The princess ran back to her tooth tent, thinking that she had broken her promise, and had sworn to the emperor and queen to promise the emperor and queen to marry the Han and Huns forever, but now doing this alone is tantamount to slapping her own ears, thinking of being blamed by so many people in the Han court behind her back, so she thought of using death to force her brother to take back the order, but fortunately, she took care of this sister, so she sent someone to pass the order and temporarily withdraw the Lou Fu soldiers back to the Huns.

Liu Bang thought that the story was probably like this, and sighed 'sigh' behind his hands. When he came to the temple gate, he looked to the north and silently said 'thank you'. In Xie Luan Sha Ling'er, she is an admirable little princess, the only trustworthy person in the Huns. Liu Bang asked if he had seen or heard about Princess Long'an, who had infiltrated the Xiongnu Kingdom. Xizuo shook his head, saying that he had never heard of the princess of the Han Dynasty. Liu Bang asked someone to reward them with 100 gold each, and waved them down.

Liu Bang sat alone on the mat, closing his eyes slightly, pondering everything that had happened at home and abroad in the past few days. It seems that the Xiongnu Maodun marriage to the Han Dynasty is fake, and it is true that the land is wantonly asked, and it seems that the matter of harmony can not be helpless at all Maodun, the wolf on the grassland, and can only be carefully guarded against their iron hooves in the future, fortunately, there is a strong Great Wall in the north as a line of defense, otherwise it will not be easy for the Huns to invade Chang'an?

Liu Bang felt very distressed about the Xiongnu's approach, they were not trustworthy, they had always been a barbaric country, and they actually wanted to use their relatives to contain them. For Helan in the north of the Han Dynasty, Liu Bang decided to transfer people to guard, remembering that Zhao Yao, the imperial history of Fuxi, was in the palace, and he suggested sending a fine work to infiltrate the Xiongnu and Lou Fu, it seems that this person is also a little smart, so he did not specially call someone to summon Chen Ping. The messenger was instructed to send Zhao Yao and ask him what he thought about the Helan border defense. Zhao Yao arched his hand and said, "Helan is located in the southwest and northeast, and it is not easy for the enemy to attack. Helan is close to the Yellow River, diverting the water of the Yellow River to irrigate farmland, the canals flow many times, the land is fertile, the crops are abundant, the harvest is guaranteed by drought and flood, and the grazing is better. There are many Helan lakes, you can fish, it is simply the second river loop, such good conditions are naturally what the Xiongnu want, I am afraid that it is not only Jiuyuan County, but also slowly move south to swallow Han. ”

Liu Bang snorted angrily, blew his beard and glared at his sleeves and said angrily, "Move south to swallow Han? I told him to come and go. ”

Zhao Yao was stunned for a moment, and when he saw that Liu Bang was unhappy, he bowed down and hurriedly echoed Liu Bang, "Yes, yes, what Your Majesty said is very true." Maudun is arrogant, and His Majesty will be able to conquer the north of Weisaibei. ”

Liu Bang's embarrassment dragged out, blinking his eyes, and he played a round with lack of confidence and arrogance, "That, that's." After that, he knew in his heart that he had said a big thing, why was he trapped in Pingcheng by Mao Dun back then? Quickly put an end to the embarrassment and urgently asked him how to deal with Helan's affairs. Zhao Yao was also busy concentrating on thinking for a moment before thinking about it, and then stepped forward to offer advice and said, "Helan has excellent conditions, and it is a place to compete for hegemony. I hope that Your Majesty will choose a good general to guard Helan. ”

Liu Bang thought for a moment and nodded. General Guo Ting was originally guarding Yulin in Shangjun County and Jingbian County, Hengshan County, and Mizhi County next to it, but when he heard that Helan had been cowardly, he immediately led troops to rescue, but it was still too late. At first, he thought that Helan was just a small county and under the protection of the Great Wall, so he did not send generals to guard it. Now that Zhao Yao said that Helan has so many benefits, it has long been in the eyes of the Huns, Liu Bang immediately decided to send generals to guard Helan, but Guo Ting is no longer possible, and after ordering the new generals to take office in Helan, Guo Ting will return to Yulin. But who should this general turn to? Liu Bang was worried again.