Chang'an was besieged and the situation was tight, but Tongguan, which served as the barrier to Luoyang, was also in danger at this time.

An Lushan's general Cai Xide led an army to surround the place. Ge Shuhan came back from thousands of miles away from Huihe to temporarily stabilize the situation in Tokyo. However, what made him very unhappy was that the emperor had always given orders to refuse to fight.

Ge Shuhan was originally a brave general, but he was so frustrated in Tongguan, relying on the natural dangers, and felt that his face was shameful. However, Prime Minister Yang Guozhong ignored his emotions and repeatedly ordered him not to attack easily, fearing that he would be ambushed by others. count.

In this way, Ge Shuhan watched helplessly as Shi Siming led the army to recover the prefectures and counties along the Yellow River one by one. Food and grass were piled up like mountains, and he gradually isolated himself. By this time, although Tongguan was dangerous, it had become a dangerous city. Encourage Waiting for help.

However, at this moment, he received an order from Li Longji from Chang'an and quickly dispatched 80,000 people back to Xijing Chang'an to rescue him.

Darling, the Tongguan garrison originally only had 100,000 troops. Later, with the support from the imperial court, the number was only 120,000 to 30,000. But now it is extremely embarrassing to ask him to mobilize 80,000 troops. There is no way it will be enough.

Ever since he was overtaken by Shi Siming and defeated, he knew that An Lushan's power was so huge that it was really impossible to resist. If he had more than 100,000 troops in his hands, he would be confident, but now he was suddenly Taking time out made him panic.

However, the emperor's order cannot be violated. Moreover, he was grateful for Li Longji's kindness and repaid him with death. He never thought about refusing to obey the order. Therefore, although he was very reluctant, he still obeyed. Li Longji ordered the 80,000-strong army to be handed over to Guo Ziyi and asked to take him back to Chang'an for emergency relief.

At this time, a spy in An Lushan's army reported the news to Cai Xilie.

This is a very powerful person. As a vassal town in the Five Dynasties, Cai Xilie has his own merits. After more than ten days of siege, he has gradually figured out the situation in Tongguan. He knows that most of the defenders of Tongguan are Ge Shu. Han was brought from the frontier and was not accustomed to the local conditions. In addition, the integration between the original army and the new army was not perfect, so he was often uncomfortable and did not attack, but only to spy on the military situation.

With Cai Xilie's shrewdness, he did not want to attack Tongguan by force. After all, in that case, the loss would be too great, and it would most likely result in no success at all, which would dampen his own energy.

However, when Cai Xilie heard the news that Guo Ziyi had taken away 80,000 troops from Tongguan, he was overjoyed and thought that the opportunity had come.

That night, he ordered his troops to prepare ladders and other equipment. After midnight, he ordered to attack the city.

He wanted to take advantage of the fact that the brother's army was greatly reduced in strength to attack the city. Moreover, during this period, he had also found out that although Tongguan was naturally dangerous, if you enter the hinterland from the Yellow River ferry, you can attack the front of Tongguan, which would be easy to defeat. many.

That night, Tongguan guard Ge Shuhan said to his deputy general Liu Bao: "The imperial court has just mobilized soldiers from me. Cai Xilie will definitely take advantage of the opportunity to attack me. We can set up heavy troops in front of Tongguan to defeat them, and then deploy elite troops." On the dangerous road of Tongguan, we will definitely be defeated."

At three o'clock that night, Cai Xilie led a large army to attack, hoping to capture Tongguan by surprise.

That night, the moon was dark and the wind was high. After the third watch, one of Cai Xilie's elite troops had quietly sneaked into the valley west of Tongguan. The leading officer was greatly surprised when he saw how smoothly they entered. I was happy and thought my plan was successful.

But at this moment, the torches were bright, arrows were flying in the narrow mountain road, and countless shouts came. It turned out that it was Ge Shuhan's ambush.

When the Cai Jiajun saw that the opponent had been prepared, they panicked and were killed by surprise. They were immediately defeated.

At the same time, the army attacking Tongguan also encountered the attack of Ge Shuhan's army. They were killed and lost their armor and fled in panic.

Fortunately, Cai Xilie had already calculated, so he only lost the vanguard troops, and all the troops were not affected. But even then, it was the biggest setback An Lushan had suffered since he entered the army.

Shi Siming, who was plundering land in Hebei Province, heard the news and returned to the army in person to preside over the siege.

By this time, Tongguan could be said to be an isolated city, even Xuzhou had been occupied by Tian Chengsi, and the north of Luoyang was empty.

At that time, Li Zhongguo, who was left in Luoyang, was an incompetent man. Although he had tens of thousands of troops, he couldn't plan. He was counting on his brother Shu Han to withstand An's attack.

Moreover, although Luoyang is in danger of Heluo, it is not the official capital of the Tang Dynasty after all. It can only be regarded as a companion capital, so it does not have a strong city defense. Once Tongguan is broken, it will be worse than Chang'an after Yangpingguan was broken.

After this battle, An Lushan's army was shaken. At this time, An Lushan personally led an army of 100,000 to arrive. Adding the original 150,000 troops, the total was 250,000. They approached Tongguan in a mighty manner, and even more Crossing the Yellow River, an iron barrel formation was formed.

The current strength of Tongguan is less than 50,000, and most of them are old and weak soldiers. How can they resist Anlu Mountain? Resisting the battle is almost the only way out.

In the next ten days or so, the two sides fought three battles and dozens of small battles. However, An Lushan was disappointed that Tongguan was not yet captured.

The terrain of Tongguan is indeed a battleground for military strategists throughout the ages. Guarding the fortress actually blocked Anlushan's hundreds of thousands of troops for nearly a month. This made Anlushan anxious. He knew that the longer it took, the more likely it would be. The more detrimental it is to yourself.

However, not to mention the difficulty of Tongguan, there are countless grains, grass and weapons in the city, which have been prepared decades ago. Not only that one man can guard the pass, but ten thousand men cannot open it, but it is normal to use one against ten.

But it was said that An Lushan was discussing affairs in the army and was deeply troubled by Tongguan, and wanted to abandon Tongguan and go straight to Luoyang.

As soon as these words were spoken, military advisor Liu Wenru quickly waved his hand: "No, Tongguan is a dangerous fortress. It echoes Luoyang from a distance and forms a horn. Once our army goes deep into Luoyang, it will be attacked from both sides. This will put us in a dilemma. If we capture Luoyang, there will be more opportunities." It is very dangerous to have a safe place to stay if it is not available for a long time. This is a taboo for military strategists, and we must be on guard against it."

Shi Siming also advised: "Your Majesty, this must not be done. It will put yourself in a desperate situation without any benefit. It is better to send an army to take Chang'an. Then the Tongguan army will definitely intercept it along the way. By then, Brother Shuhan will be captured by us." capture,"

Hua Mingqing also said after hearing this: "Your Majesty, General Shi's plan is very clever. I think Li Longji is very kind to Brother Shuhan. Once Chang'an is in crisis again, he must ask Brother Shuhan for support. At that time, Tongguan will send another 20,000 people." We have a very high chance of attacking the defenders, and with Ge Shuhan's bravery, once we withdraw our army and move westward, we may be able to safely challenge us. Then our chance will come,"

Tian Chengsi continued: "Hua Keqing's words are very true. I think that brother Shu Han only knows how to show off his strength. When he was in the northwest, he usually led the battle. Now he has been hiding in the city for the past month. He must be feeling depressed. Why don't we set up a trap?" Ambush and wait for this guy to come and catch him,"

Although An Lushan was anxious, he was a master of the transformation realm after all, so he still had some composure. He thought that it would be unwise to attack Tongguan by force. This move could indeed deter Li Longji. Moreover, Tanma News said that Tang The North is now very anxious to attack Chang'an. Although King Qin's troops are being recruited from various places, they are far from combat effective. This can be said to be a perfect opportunity for him to attack Chang'an. He may be the first to capture Chang'an.

In An Lushan's heart, the most important thing is to capture Chang'an. He already has a deep hatred for the Tang Dynasty in his heart: I attracted the main force of the Tang army at Tongguan, but you took advantage behind my back. Now that the army returns to Chang'an, It depends on how you protect yourself from the internal and external attacks, but I can take the opportunity to capture Chang'an. When the time comes, once Chang'an is defeated, my brother Shu Han and his third brother will still hold on to Tongguan, but it has lost its meaning.

An Lushan made up his mind and immediately ordered Shi Siming to lead an army of 100,000 to besiege Tongguan. However, An Lushan personally led an elite army of 150,000 to cross the Yellow River westward and penetrated deep into Shaanxi from Zhengzhou and Xuzhou. They plundered along the way and captured Ding Lafu everywhere. The army gradually grew to two people. One hundred thousand people, falsely claiming to be half a million, marched to Yangping Pass in a mighty manner.

Yangping Pass guard general Zhuan Xin had already received the news. He had already plundered all the grain and grass in nearby counties and built deep ditches and high fortresses, waiting for the arrival of Anlu Mountain's army.

Zhuan Xin had already received orders from the Tang Dynasty, so he could not pass the border with his troops.

An Lushan's army of 200,000 people marched day and night. In less than ten days, they had reached a place thirty miles before Yangping Pass. The sentinel detected that Yangping Pass had been occupied by the Tang Dynasty. He immediately dispatched his general Gao Yue to lead him. A letter from the State of Yan came to Yangping Pass and called the door.

When Zhuan Xin saw that it was a messenger, he immediately opened the city and put it in.

At this time, although An Lushan had not yet proclaimed himself emperor, the troops in the army had already become emperor-like, and An Lushan was unsuspecting, and everyone knew that he was rebellious.

Gao Yue explained his purpose of coming and presented his credentials, which read briefly: Emperor An Lushan of Yan Dynasty sent a letter to General Weiwu Pingjuan of the Tang Dynasty. He wanted to be an ally. Now my dear brother is in trouble in conquering Chang'an. The emperor's brother is willing to help. With one hand, they encircled Chang'an to relieve the crisis. Now they have led an army of 500,000 people to hunt in Yangping. However, they refused to let him go without giving him a reward. When the certificate of credence came, he wanted to see the friendship of the alliance and let him go.

After reading the letter, I thought, how can I make the decision on such a big matter? So I sent someone to Chang'an to ask Marshal Tang before making a decision. He comforted Gao Yue with good words and offered hospitality to the hotel, saying that he could get it in half a day. Replies from the Tang Dynasty.
Chapter completed!