What was the first big mistake made by Emperor Xuanzong of the Tang Dynasty after the Anshi Rebellion?

In the 14th year of Heaven (755), on November 9th, An Lushan pretended to conquer Yang and launched a rebellion. When the "Huang Chao Uprising" broke out, Tang Gaozong realized the serious consequences of the problem and gradually bravely crowned the three armies to defend the enemy, so Gao Xianzhi and Feng Changqing, the twin stars, floated to the river. At that time, Feng Changqing, who was appointed as Anxi's envoy, went to the DPRK to meet him. Tang Gaozong quickly grasped this straw, met him and asked him for advice.

Feng Changqing said that the world has been peaceful for a long time now, and the masses are afraid of war. Therefore, after the An Shi Rebellion, he will be resolute and invincible. However, if the Emperor trusts me and lets me go to Luoyang, the capital of the East, to raise troops against the enemy, I will ride across the river and give An Lushan's head to the Emperor.

Hearing Feng Changqing's own words of "life and death", Tang Gaozong was very happy, so on the one hand, he gave Feng Changqing the titles of john young and Pinglu, and made him the "commander in chief" of counterinsurgency. On the other hand, Li Wan, the Grand Marshal and Gao Xianzhi, the Deputy Grand Marshal, became the "Depth Charge" of counterinsurgency.

So, Feng Changqing immediately went to Luoyang to recruit, and recruited 60,000 trolls in less than half a month. Later, they stayed by the river to stop the thief from crossing the river. However, Gao Xianzhi didn't want to let others down. He is willing to spend a lot of money to recruit soldiers. So he recruited 100,000 soldiers in Chang 'an, Beijing, and stationed his troops in Shaanxi (now Shaanxi County, Henan Province).

At this moment, Feng Changqing and the anti-thief pass in Wu Prison launched a "great contact with the truth". Because Feng Changqing's team was established temporarily, and Feng Changqing was too arrogant and slightly underestimated, so he lost. All the way back to Shanzhou, but thanks to the coordination of Gao Xianzhi, the escape was cured. Later, at Feng Changqing's suggestion, Gao Xianzhi voluntarily gave up Shaanxi and stuck to Tongguan, a national defense town.

Tongguan is located at the junction of Shaanxi Province and Henan Province, with Qinling Mountains in the south and big rivers in the north. There is only one path and the terrain is extremely safe. It is said that Tongguan is the only and last natural barrier in Chang 'an, Beijing. The key to its location is obvious. After arriving in Tongguan, Gao Xianzhi reinforced the ancient city wall and polished the horse with his strength. At this time, Feng Changqing, who had already been removed from office, was willing to be Gao Xianzhi's little assistant, and they fought against the enemy together. As a result, An Lushan's elite soldiers were cured in Tongguan.

An Lushan's elite soldiers were blocked in the front, and then they became unstable and immediately got into deep trouble. If Gao Xianzhi and Feng Changqing stick to Tongguan, An Lushan will lose his heart. As everyone knows, at this important juncture, a eunuch went up and down the whole world situation. The eunuch's name is Bian Lingcheng.

Bian Lingcheng is a typical treacherous villain. Because of Tang Gaozong's trust, he served as a prison army several times. In the battle of Gao Xianzhi, Bian Lingcheng commanded the army. After Gao Xianzhi's winning streak, he immediately sent someone to Tang Gaozong to win the battle. As a result, he was rewarded, but at the same time he was dissatisfied with Fu, the leader of Gao Xianzhi. Fu thought that Gao Xianzhi was also like Leap, so he called him a "slave of the Korean dynasty" and tattled and ruined Gao Xianzhi. In the end, Bian Lingcheng learned the truth from Zhou Xuan. In the end, Gao Xianzhi replaced Fu as our envoy of the times in the four towns.

It is precisely because of this kind of nurturing grace that when Feng Changqing and Gao Xianzhi trained successors to resist An Lushan, serving as the border commander of the army became Gao Xianzhi and made many personal rules. At that time, Gao Xianzhi selflessly and fearlessly resisted an Anshi Rebellion, and had no spare time to "obey" the border order. As a result, Bian Lingcheng was very angry and the consequences were very serious.

Bian Lingcheng took advantage of the power of the prison army and immediately played the role of Shu, saying that Gao Xianzhi pocketed his own money, arbitrarily deducted his salary and enjoyed himself, causing him to abandon the city without fighting. In his later years, Tang Gaozong was already manic, and the Anshi Rebellion made him weak and suspicious. After receiving the real name report, he immediately sent Bian Lingcheng to kill Gao Xianzhi and Feng Changqing in the letter general.

Bian Lingcheng returned to the barracks, first met with Feng Changqing and read the troublesome article. After hearing this, Feng Changqing did not ask for rehabilitation and funeral, but simply accepted it. Before he died, he made a clear request: one by one, give his inheritance to the emperor. His legacy of just over 200 words shows his loyalty and inadequacy. As a general, he did not die in the arena, but at the hands of treacherous villains. Can he not regret it? After Feng Changqing's death, Bianling City went to Gao Xianzhi with 100 sword and axe soldiers to read the imperial edict. Upon hearing this, Gao Xianzhi immediately asked for justice: "I withdrew from Tongguan, and I turned myself in, but it is totally slander to say that I arbitrarily withheld my salary!

Bian Lingcheng sneered: "The sky is above and the earth is below. The soldiers you exploited are all standing outside. Why don't you turn yourself in? "

Gao Xianzhi said loudly to the officers and men at the gate, "I'll enlist you. Although I got some supplies, I still can't arm you. Everyone is just looking forward to pioneering and innovating and exchanging meritorious military service for gifts. However, the potential of anti-theft is enormous. I ordered the withdrawal of Tongguan in order to better guard the gateway for the emperor. Today, the soldiers helped me make a proof. If I arbitrarily deduct everyone's salary, everyone will shout, otherwise they will shout. " As a result, the soldiers at the door shouted: "Cheat." The appeal is great.

However, the border town was indifferent, so that the knife and axe were executed and the Tang Dynasty government empire was killed on the same day. Killing generals, generals, Gao Xianzhi and Feng Changqing before the war can be said to be the first mistake made by Tang Gaozong since the Huang Chao uprising, and the result is naturally quite serious. Four words: self-destruction of the Great Wall.