When Du Yan heard that Li Chongjiu agreed to support Zheng, he couldn't sit still and said anxiously: "As long as King Zhao is willing to support Zheng, not to mention three conditions, only thirty or three hundred conditions, we can... we can discuss it."

Du Yan wanted to agree, but then he thought about it and said the word "discussion", but he was afraid that Li Chongjiu's lion would speak loudly, and immediately said, "I, Zheng State, have Huiluo, Luokou, and Hanjia Sancang. I heard that King Zhao attacked Liu Heita. If the military rations are insufficient, you can withdraw it at any time."

Xue Wanshu said, "Go back to Luokou, Han Jia Sancang, our army also has Li Yang Cang, and there is no shortage of military rations."

Du Yan was stunned when he heard this and said, "I have lost my mind. King Zhao also asked for instructions. I will definitely cooperate with you with all my strength."

Li Chongjiu smiled and said, "I'm afraid it's not easy. For example, if I asked Master Zheng to go to the imperial title, would you say Master Zheng agree or not?"

After hearing this, Du Yan changed his expression and stammered, "Is King Zhao joking?"

In order to be the emperor, Wang Shichong was plotting to usurp the throne, and he fell into the head with all his infamy and even killed the Emperor Taizhu. If he had already taken the imperial title, wouldn't it be a slap in the face with "ciluo"?

Bang!

Du Yan was startled, and Xue Wanche, the general of Zhao army, slapped the table and said, "Why do you want to laugh at the king? Is it necessary to laugh with you if you say something about the king's words?"

Du Yan was so scared that his face was pale.

Li Chongjiu waved his hand and said, "General Xue sat down."

After hearing this, Xue Wanche sat down, but his eyes stared at Du Yan. Li Chongjiu said, "A general under his command does not know the etiquette. Please don't be surprised."

Seeing that Li Chongjiu was so polite, Du Yan quickly said, "King Zhao, where is the case, this general is loyal to the emperor. It is understandable. As for the conditions, I have to discuss everything. I will ask the emperor to consider it when I go back to the east. Even if I go to the imperial title, it is not unrelated."

Li Chongjiu laughed when he heard this. Zhang Xuansu and Xue Wanshu also smiled. Li Chongjiu proposed to let Wang Shichong take the imperial title, but it was just a temporary temptation. Du Yanyan could discuss it. It seemed that the whole people of Luoyang were not confident enough and believed that the Tang army was invincible. Only by asking for help from Zhao could they avoid the great disaster in Zheng State.

When Du Yan saw Li Chongjiu laughing, he didn't know what he meant, but his heart was full of ups and downs.

Li Chongjiu looked at Du Yan and said, "I'm just joking. When you go back, please feel relieved. Tell him that Li Tang is Zhao. Zheng is a great enemy. Li Tang attacks Zheng. Zhao will never sit idly by. When I defeat Liu Heita, I will lead my army to support him. However, before Liu Heita is defeated, I will ask Zheng Lord Zheng to deal with Li Tang for a while. Mr. Du should not be happy too early. There are still three conditions for helping Zheng alone."

Du Yan almost burst into tears after hearing this, and said excitedly: "Your King Zhao can agree. I, Zheng State, do not be grateful to the King of Zhao for his great kindness. The King of Zhao will ask for instructions on the three conditions."

Li Chongjiu said, "The three conditions are actually one condition. Before the lonely defeat of Liu Heita, Zhao Ruo's support for Zheng, and Zheng Lord needs to ensure that Huaizhou and Heyang are not lost."

Du Yan said, "The war has not yet begun, and everything is inseparable. If the battle is not good for Zheng, Huaizhou is a Hebei enclave. It may be a bit difficult to protect it."

Zhang Xuansu said, "It's fine to Huaizhou, but the three cities of Heyang are important places and should not be abandoned easily."

Li Chongjiu saw Du Yan silently and said, "If Huaizhou and Heyang are lost, then retreat to the next best. Then go back to Luo, Luokou, and Hanjia Sancang. The princes and princes should not give the Tang army lightly. If they cannot defend, at least one of them must be kept."

Du Yan was silent for a while, obviously at a loss.

Li Chongjiu stood up and said, "If this is the king and the prince can't do it, then there is only the last one."

Du Yan also quickly stood up, following Li Chongjiu and said, "Please tell me, King Zhao."

Li Chongjiu said, "If the war is unfavorable, it doesn't matter if Zheng Gong lost all cities in Henan. But he must keep the Huzhu to ensure that it is not lost. If the Huzhu cannot be kept, then please forgive me for helping Zheng."

Hearing Li Chongjiu's last condition, Du Yan suddenly let out a cry and screamed out loud.

Li Chongjiu looked at Du Yan and asked, "That's all I have said. Mr. Du asked Master Zheng to tell Master Zheng that although the city of Luoyang is strong and heavy troops are stationed there, the lonely city cannot defend itself."

Since Li Yuan ordered Wang Shichong to fight in the east, the soldiers of the Tang Dynasty were conscripted and swept the ground to serve as soldiers.

On the day of the war, Li Yuan personally sent Li Jiancheng, Li Shimin and Li Yuanji to Baling Pavilion. The Tang Dynasty battle flag was flying eastward. The Tang soldiers wore battle jackets, hung a long bow on their waists, grabbed a horizontal knife in their hands, and went east with great pride.

Seeing this scene, Li Yuan happily said: "The army is powerful and the destruction of the thief is just around the corner."

Li Shimin and Li Yuanji both smiled. Li Yuan looked worried and said, "Although Wang Shichong is fierce, it is not difficult to deal with. The only thing I have concerns in my heart is Hebei."

Li Shimin heard the words and said, "Is it Li Chongjiu who is worried about my father?"

Li Yuan said solemnly: "It's true. This thief has become a climate. Youyan's iron cavalry is in hand and will command 100,000 troops. If you cross the river to aid Zheng in large quantities, I am worried that the attack on Zheng will be defeated."

Li Shimin said: "Don't worry, Father, Li Chongjiu has the ambition to clear the six worlds, Wang Shichong is so suspicious, and he has added the throne to the emperor. The two will inevitably be incompatible with each other. If the two families are united, they will be guided by profit. They have ulterior motives and are in harmony with each other, and will give their children the opportunity to take advantage of it. What's more, Li Chongjiu did not capture Mingzhou on the first day and did not dare to go south in a large way."

Li Yuanyan said, "My son has some reason."

Then Li Yuan and Li Shimin gave a few more words, and after the three brothers bid farewell to Li Yuan, they each led their troops to leave.

Li Jiancheng, Li Jiancheng and Li Yuanji also divided the road here. Baling Pavilion is the intersection of Tongguan Road, Wuguan Road and Pujin Pass Road. Li Jiancheng directly led his troops to the north to go to Pujin Pass Road, cross the Yellow River to Pujin to prepare for the Turkic Republic, while Li Shimin and Li Yuanji personally led 100,000 elite Guanzhong Prefecture Army and went east to Tongguan Official Road.

There is also a Wuguan Road, which goes south and connects to Jianghan, which was opened when Qin and Chu compete for power during the Warring States Period.

One hundred thousand Guanzhong Prefecture soldiers passed through Baqiao, traveled 60 miles a day, and headed straight to Tongguan. In addition to the prefecture soldiers, they were also more likely to transport civil servants than war soldiers.

At that time, the Wei River was no longer open because the Wei River was not enough and there was a lot of shallow sand. Although water could be transported from Shanzhou to Tongguan, it was very difficult to travel from Dantongguan to Chang'an. For a period of time, the Wei River could not even use grain ships, and only rafts were woven by floating bamboo and wood.

Therefore, in the fourth year of Kaihuang, Yang Jian ordered Yuwen Kai to open the Guangtong Canal, which was more than 300 miles from Tongguan to the Yellow River. From then on, the grain could be connected to Chang'an from the Yellow River. However, it had been more than 20 years since the Guangtong Canal was opened. Because it still referenced the sandy Wei River, it soon fell into a silt situation, so the section from Tongguan to Chang'an had to be pulled by a ox cart.

Li Shimin led a large army to walk on Tongguan Avenue, and a Tongguan Road also experienced countless winds and rains. The west side of Guanzhong is called the solidity of the Luhan, and only the Tongguan official road can be feasible. Although the Yellow River crosses the Luhan, it is dangerous for the three pillars and the boats are blocked here, so only the Tongguan official road can be feasible for Luoyang, Chang'an and Luoyang.

Now the official road of Tongguan is filled with soldiers from the east, and no business trips are seen.

Fang Xuanling and Du Ruhui rode a donkey with Li Shimin. The red horse that Li Shimin rode was a famous horse from Persia, and Li Shimin called it Shifa Chi.

When Fang Xuanling saw the fierce soldiers in the Guanzhong of the Tang army, he had to carry dry food on his back and trek on the Tongguan Road. He couldn't help but sigh and said, "Today's momentum, the country is based on the army. The soldiers are based on food, and food is based on the transportation of grain. Luoyang is in Wang Shichong, and the Yellow River canal is blocked. Even the Guangtong canal is abandoned. Boats and ships cannot transport grain. The soldiers have to win the food, which is really exhausting."

Du Ruhui said: "The transportation of grain from north to south is not easy. There are two major difficulties in transportation of grain from the Yellow River. One is the difficulty in transportation of the Wei River. When Emperor Wu of Han established the capital of Chang'an, the grain of grain could transport four million stones every year, and the Wei River could transport a large ship of 10,000 stones. During the Daye period, the Wei River was only 200,000 to 300,000 stones a year, even if the Guangtong Canal was open, the grain of grain from the east was only 100,000 stones. The second was that there was a danger of the three gates. The ships from Luokou to Shanzhou must be transported by abandoned boats. During the Kaihuang period, the emperor issued an edict to carve the pillars, but it was left alone."

Fang Xuanling heard the words and said, "Therefore, Luoyang is not broken, and Guanzhong is not rich. After defeating Wang Shichong, the Yellow River canal transport was reopened. Now the grain price in Chang'an is still high. This time, the eastern expedition to Henan, the grain reserves can only last for one month."

Li Shimin laughed and said, "So if we want to defeat Wang Shichong, we can only rely on food to the enemy. The six major official warehouses in the world, Wang Shichong lives in Luokou, returned to Luo, and contained three warehouses of Jia, and accumulate grain from the north and south to achieve the eastern capital. Any warehouse we break will be enough to supply the military rations of the eastern expedition."

Fang Xuanling said: "King of Qin, this time he attacked Zheng, he can follow his example by looking at the humble position. Zhao defeated Liu Heita."

Li Shimin asked, "How to say it, listen carefully."

Fang Xuanling said: "This time, Zhao State defeated Liu Heita for only two months, and went to several counties in Hebei, which was beyond my expectations. In the eyes of my humble ministers, the Zhao army could defeat the brave army and the people of Liu Heita, but there were three reasons for the people who were not sure of their determination."

Du Ruhui urged and said, "Brother Fang, don't keep it in hiding."

Li Shimin also smiled, and Fang Xuanling said with a stern expression: "First of all, I took advantage of the Yongji Canal. Li Chongjiu took advantage of the water, bypassed Gaoyang City, which was heavily guarded by the Xia army, and went down the canal, and all counties in Hebei were invincible."

"Secondly, Li Chongjiu seized the Liyang Cang from Yu Culture and his hands, and used the Liyang Cang's grain rice to continuously supply more than 100,000 troops to the southern expedition. Otherwise, the military grain storage of Zhao State would have been exhausted in less than October."

"Three times, Li Chong and Jiu Zheng made a strategy of attacking together. The main force came to Daming, forcing Liu Heita to leave lightly. Yuchi Gong, Xu Shiji and Guo Xiaoke made three troops to attack together. After winning consecutive battles, the army surrounded Mingzhou. These three reasons can be used to learn from our Tang Dynasty's attack on Zheng State."
Chapter completed!