In the autumn of the second year of Yuanshuo, that is, in the autumn of the second year of Shi Siming's Shuntian, Shi Siming also carried out a grand sacrifice to the sky on the earthen platform outside Youzhou City, saying that he wanted to comply with the mandate of heaven to crusade against Li Siye and his Hexi army. I want to drive the personal expedition and kill the traitor Li Siye! Hope that the sky will bless, the battle will be won, and the attack will be overcome! ”

In Shi Siming's eyes, Yunzhou is no less important than Tongguan to Guanzhong, although he has ascended the throne as emperor in Luoyang, but Youzhou and Yingzhou are his roots, so this time he wants to take Yunzhou back no matter what.

He gathered 100,000 Youzhou soldiers, and Hu Ma galloped through the dust for dozens of miles, and as a result, he met Li Siye's army preparing to attack Youzhou thirty miles west of Yunzhou. The two sides lined up in the field, Li Siye personally rode a fast horse and carried a Mo knife in front of Daxu, and Shi Siming was wearing golden armor on the opposite side.

The two of them were like enemies when they saw each other, and turned on the mouth cannon mode: "Li Siye, you rat generation stole Guanzhong and became the king, hijacked the Li Tang clan as a puppet emperor, and tried in vain to seize the world, so you want to ask me if this fast knife in Shi Siming's hand agrees." ”

Li Siye laughed and said: "Grandson, you are just a small military envoy under the command of the sheep thief in Youzhou, because of the rebellion and rebellion to steal a high position, Houlushan died violently, and you live in Youzhou with a strong army, so you have the ambition to be the emperor. ”

Shi Siming retreated to the array angrily, and immediately personally beat the drum to urge the cavalry to fight, Li Siye also ordered to blow the bronze trumpet, so that the Flying Tiger rode out to fight, the second son Li Chongbao charged forward with a silver spear, and the cavalry drew horned bows on the horses and threw them at each other.

In order to reverse the situation, Li Siye ordered the bombardier to tie the fierce fire and thunder to the arrows of the Fuyuan crossbow, and aimed at the cavalry of the Yan army who was riding a war horse to shoot in a formation.

Shi Siming saw that the situation was not right, and hurriedly ordered Mingjin to withdraw his troops and retreat to Yizhou.

There were not many fierce fire mines and explosive bombs in Li Siye's army, so he did not take the opportunity to pursue them. He found that after one war after another, the soldiers' dependence on firearms was far greater than he expected, and it was almost to the point that without artillery and fierce fire, they would not have the confidence to win on the battlefield.

Li Siye hurriedly wrote a letter to Xu Bin, a military advisor far away in Chang'an, asking him to order people to escort more fierce fire mines and explosive bombs to Yunzhou to provide confidence and fire support for the army.

Unexpectedly, his letter was not sent, the urgent official document from Chang'an had been delivered, and the post soldier who delivered the letter knelt down in front of him panting, and said with his crossed hands: "Lord, Chang'an is in an emergency!" ”

Li Siye took the letter and looked at it, it turned out that he secretly led 30,000 soldiers to the north to crusade against Shi Siming, and I don't know which Li Tang loyal minister in Chang'an leaked it to Guo Ziyi in Hanzhong. Guo Ziyi took the opportunity to lead the army out of the Baochuan Road to attack Taibai County and Mei County one after another, and Ashina Lulu, who was stationed in Mei County, was defeated and retreated to Zhouzhi County.

Xu Bin replaced Li Siye in Chang'an, and hurriedly sent Duan Xiushi and Bai Xiaode to lead the troops in the suburbs of Chang'an to Zhouzhi County to meet the enemy. Unexpectedly, Guo Ziyi actually dangled a shot and went north to attack Fufeng County, and Zhao Chongxuan, who was stationed in Chencang, also hurriedly led the army north to meet the enemy, causing the strength of Chencang County to be empty.

Guo Ziyi's third son, Guo Xi, took the opportunity to attack Dasanguan through Chen Cangdao, and actually broke through the Dasanguan, Guo Ziyi led the army to turn around and work with his son to deal with Zhao Chongxuan, Zhao Chongxuan was naturally invincible, and hurriedly retreated to Qianxian.

At this point, Guo Ziyi has completely controlled Fengxiang County, like a nail that has completely planted his heel in Guanzhong.

Only then did Xu Bin realize that none of these generals under Li Siye could deal with Guo's father and son, so he had to write a letter to report the battle situation in Guanzhong in person, and asked the lord to come back and personally preside over the battle.

Guo Ziyi's sudden attack interrupted the military process of Li Siye's Northern Expedition to Youzhou, and also gave Shi Siming a chance to breathe.

Li Siye was extremely annoyed in his heart, he felt as if he was being teased, and his entire strategic plan and his plan to unify the north first had come to naught.

He immediately planned the existing situation in Hedong, and ordered his son Li Chongbao to take charge of Taiyuan, Bai Xiaode to guard Yunzhou, Zhao Chongyu, who was originally guarding Fufeng County, to guard Shangdang and Pujindu, and he himself led 30,000 troops to quickly turn back and rush back to Guanzhong.

He quickly changed his strategic thinking and decided to seize Hanzhong and Shuzhong first, so as to ensure the strategic depth of Guanzhong. Guo Ziyi was bent on restoring the glory of the old Tang Dynasty and regarded him as an enemy. Such a contradiction is irreconcilable and cannot be resolved, so he can only eliminate the other party before he can rest assured to deal with Shi Siming.

After Li Siye returned to Guanzhong, he personally mobilized the Flying Tiger Cavalry and the Xuanwu Artillery Battalion, and sent troops to prepare to recapture Fengxiang and Chencang, which Guo Ziyi occupied.

With Duan Xiushi and Tian Zhen as the left and right pioneers, he came to Fengxiang City, and looked at Guo Ziyi's father and son standing on the city tower from a distance, looking very proud with a smile on his face. This is Guo Ziyi's radical method, Li Siye is not much angry in his heart, standing on the ancient values and positions, Guo Ziyi is the righteous side, the position of representing the Tang Dynasty and loyalty, Li Siye and Shi Siming are the real rebels.

"Guo Linggong is unharmed, I didn't expect you to be so worried about me, and suddenly gave such a knife when I couldn't prevent it, which really made me unable to resist."

Guo Ziyi laughed and said: "It is my Guo Ziyi's duty to quell rebellion and rebellion, especially to kill a thief like you, today's battle in Guanzhong is to support Tang Zhengshuo and demonstrate the filial piety of loyal ministers." You and other thieves and courtiers will be reviled by a thousand years. ”

Li Siye replied with a smile: "What is the point of being sharp-tongued, the key is to look at the means and the ability to fight, Guo Linggong's loyalty, I'm afraid it will be in vain." ”

"Bombard the city for me and take Chen Cang!"

Hundreds of Xuanwu cannons were pushed into the gun position, the gunner lit the twister, and bombarded the city wall, Guo Ziyi was blown up to the point that he could not stand steadily, and his son Guo Xi hurriedly escorted him into the city tower.

After a burst of artillery bombardment, Tian Zhen personally carried a shield to lead the troops to attack the city, but Guo Ziyi's tactical level was indeed strong, and he personally led the soldiers to shoot arrows down on the city wall, throwing sasswood, and the Hexi army suffered heavy losses for a while.

Li Siye ordered the artillery to calibrate the target and bombard the city wall, and at the same time personally led the people to rush to the city, pushed the huge battering ram to the city gate, lit the twist, and then quickly retreated.

A violent explosion from the tip of the battering ram knocked the huge gates to the ground, and the soldiers of Hexi rushed into the city with shouts and shouts.

Guo Ziyi did not hesitate to withdraw from Chen Cang decisively and retreated to Dasanguan. Li Siye led a large army to attack Dasanguan, and after several battles under the cover of artillery fire, he finally recaptured Dasanguan before dark.

Of course, he couldn't stop there, and pursued Guo Ziyi's heel all the way along Chencang Road to the edge of the Han River, and the Battle of Hanzhong officially kicked off.

Guo Ziyi retreated to Hanzhong City, reinforced the wall battlements with stones, and prepared to resist stubbornly. On the one hand, he sent people from the lower reaches of the Han River to Nanyang Xiangyang to ask for help, hoping that Li Heng, who was in the south of the Yangtze River, would send a part of his troops to aid Hanzhong.

The court elders and Hanzhong officials who followed Guo Ziyi to stay in Hanzhong persuaded Guo Ziyi to give up Hanzhong, retreat to Chengdu in Shuzhong, and rely on the danger of the Sword Pavilion to defend it, but Guo Ziyi categorically refused: "Hanzhong is the foreign aid of Shuzhong, and it is also the road to outward expansion, once we give up Hanzhong, it is equivalent to hiding as a shrinking turtle, and there will be no chance to recapture Guanzhong in the future." ”

You still want to recapture Guanzhong, this time you can hit Feng Xiang is already extraordinary.

Naturally, they are not denying Guo Ziyi's ability, but the strength of Guo Ziyi's side is too weak, when he was defeated and retreated to Hanzhong, there were only more than 10,000 remnants left, and after just two years of recruitment, it was expanded to more than 30,000 people. And Li Siye has long relied on the three places of Guanzhong, Longyou, and Hexi to have enough soldiers and enough food, and his troops are as many as 200,000, and his military strength is the strongest in the world.