The host is red and black, and the system can only chirp

Gao Hongde was very puzzled. The patriarch had been trying his best to avoid the chaos in the Central Plains and focused his attention on internal affairs and border defense.

Why did the clan leader's attitude change drastically during a trip to the south?

"Master, did you learn the news in advance?"

"what news?"

Gao Hongde was shocked: "Don't you know that Xue Ju of Western Qin paid tribute to the Turks and was named Datu Bijia Khan by the Turks... Didn't the suzerain attack Xue Ju because of this?"

Dadu Biga Khan? So familiar.

Who is coming?

Oh, in history, this title was given by the Turks to Liang Shidu who died early.

Sect Leader Xi was puzzled: "Is Xue Ju not afraid of death? I am still here, how dare he declare himself a vassal of the Turks?"

Can we still be vague about the alliance and become a vassal?

Gao Hongde was even more puzzled than Sect Master Xi: "You don't know? Then why did Sect Master immediately mobilize his troops to march westward upon returning to the border town?"

Sect Leader Xi had nothing to say about Gao Hongde. This man was perfect at execution, but his military talent was almost zero.

She patiently explained: "Xue Ju is entrenched in the Longxi Plateau and has a commanding position over Guanzhong. Li Yuan has officially proclaimed himself emperor. Only when Qin and Liang are settled can Guanzhong be at peace. If Li Yuan wants to conquer the world, he must resolve his worries."

Could it be that Sect Leader Xi would just watch Li Yuan consolidate his rear?

The Longxi Plateau is adjacent to the territory of the Xi clan.

What's more, Sect Master Xi was extremely covetous of that piece of land.

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Sect Leader Xi turned around and saw a map hung on the wall that she had drawn herself in comparison with the map of the Sui Dynasty provided by Wang Rengong.

Sect Leader Xi pointed out each point and explained them to Gao Hongde one by one.

"Leaving Xiaoguan, heading west along the valley, crossing the Yellow River, the area on the left... is the towering Qilian Mountains. The Qilian Mountains stretch for more than a thousand miles, and under the mountains is a passage over a hundred miles wide. The Qilian Mountains are covered with snow all year round, and the melted snow on the top of the mountain flows down the mountain, forming countless rivers that nourish the earth, making the land along this passage fertile and rich in water and grass."

This is the famous Hexi Corridor.

The Hexi Corridor starts from Wushaoling in the east and ends at Yumenguan in the west, connecting Wuwei, Jinchang, Zhangye, Jiuquan and Jiayuguan.

"Hongde, look, the middle of the Hexi Corridor is the prairie at the foot of Yanzhi Mountain. This is the Shandan Military Horse Farm founded by Huo Piaoqi during the Hanwu period."

Shandan Military Horse Farm deserves to belong to Zhang Wansui.

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Sect Leader Xi repeatedly knocked on the location of the Shandan Military Horse Farm, "This will be the key to completely destroying the Turks in the future."

Gao Hongde's trust in Sect Leader Xi was absolutely blind.

When the four lines of Hengqu were passed back to the border town, Gao Hongde was so excited that he couldn't sleep all night. As a senior scholar, Gao Hongde didn't really have anyone to talk to at the border.

Among the entire border town leadership team, the most capable person is actually the military general Li Jing. Apart from Li Jing, only Hou Xibai can agree with him.

Although Hou Xibai was easy to talk to, his position was unclear. Gao Hongde was always wary of him and never let him access confidential information.

Li Jing has been stationed in Wuyuan... In other words, Brother Hongde is busy with official duties and there is really no one to communicate with.

While talking with Sect Leader Xi, Mr. Gao Er still had huge dark circles under his eyes.

The spirit is very excited.

Young Master Gao believed from the bottom of his heart that the sect leader's approach to learning and martial arts was exactly the same, and he had already returned to basics.

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Sect Leader Xi looked at Gao Hongde's frightening eyes and immediately became alert. She said cautiously, "Everything in Shanyang depends entirely on you, Hongde."

"It is the right thing to do to promote virtue."

Sect Master Xi's eyes were deep: "Logistics supply... The focus is not on me leading the army to attack Xi Qin, but on ensuring the supply of weapons to Pharmacist Li. Do you understand?"

Gao Hongde bowed and replied, "I will obey the order of the sect master."

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In June, Li Yuan appointed his son Jiancheng as the crown prince, Duke Zhao Shimin as the King of Qin, Duke Qi Yuanji as the King of Qi, and conferred titles on many of the Li Tang clan members.

On the 1th day of the th month, Xue Ju attacked Jingzhou. Li Yuan appointed Qin Wang Shimin as the marshal and led the troops of the eight generals to resist him.

Li Shimin, a proud son of heaven, commanded a large army for the first time in his life.

Li Yuan took out the most elite troops of the Li Tang Dynasty, and handed over all the 100,000 troops to Li Shimin. At the same time, they were equipped with the current luxurious generals of the Li Tang Group, including Liu Hongji, Qiu Xinggong, Yin Kaishan and other eight marching generals.

On the Western Qin side, Xue Ju, who had received support from the Turks, led a large army to invade Anding County. The main force, led by Zong Luohou, advanced towards Gaoqiong. On the other hand, Xue Ju personally led the troops on the northeast and southwest wings, and sent mobile cavalry to harass Beidi and Fufeng counties.

Gaoqiao City was the gateway to Chang'an. When it was captured by Xue Ju, Chang'an City was in danger.

In early July, Li Shimin led a large army to Gaoqiong in advance and began to defend the city.

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Faced with the daily insults from the Western Qin army, Li Shimin adopted the strategy of "delaying".

Li Shimin believed that Xue Ju's army was alone and deep in the enemy's territory, with insufficient food and grass, and the soldiers were exhausted. As long as the Tang army held on, they could wait for the enemy to tire themselves out.

What's more, Li Shimin happened to be ill, so he decided to defend the city.

But Li Yuan in Chang'an City couldn't sit still.

Xi Mingming, Wang Shichong, Li Mi, and Dou Jiande can surround Guanzhong. How can the army remain isolated for a long time?

Chang'an sent envoys to the front line every day to urge Li Shimin to send troops to fight a decisive battle as soon as possible.

Li Shimin considered military affairs, while Li Yuan started from politics.

Li Shimin fell silent.

Liu Wenjing, the chief military officer, and Yin Kaishan, the military commander, took over the command of the army and led 100,000 Tang troops out of the city for a decisive battle. The eight military commanders led the way and marched out collectively.

To the southwest of Gaocheng City, both sides lined up their troops.

A fierce battle began.

The battlefield where cavalry charged was bloody and cruel.

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After all, the Tang army had more people and was well-rested, so they gradually gained the upper hand.

The Tang army at this time did not know that Xue Ju, who had been harassing Jingzhou, had already secretly circled behind the Tang army, and his light cavalry fired a hail of arrows.

Xue Ju's arrival immediately reversed the situation on the battlefield.

The morale of the powerful Western Qin army was high, and the Tang army, attacked from all sides, collapsed and was forced to retreat.

In the era of cold weapons, a hasty retreat from the battlefield was not much different from committing suicide. As expected, the Tang army was forced into the north of Gaoqiong City by Xue Ju's army, caught up with them in Qianshuiyuan, and gradually formed a siege.

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In this battle, Li Tang lost 50 to 60 percent of his 100,000-strong army; three of the eight military commanders, Murong Luohou, Li Anyuan, and Liu Hongji, were captured.

Xue Ju occupied Gaochong, collected the bodies of the Tang soldiers and piled them up to form a Jingguan.

Li Shimin led the remaining troops to retreat to the Weishui River, and I rushed back to Chang'an.

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Sect Leader Xi stared at the secret letter in his hand, unable to move for a long time.

Xianxian couldn't bear it: "Sect Master."

If there is one thing that makes the Sect Master and the Demon Sect incompatible, it is the respect for life. So many people died in what the Sect Master called internal fighting... From the day the Sect Master decided on this military operation, he never smiled again.

Sect Leader Xi took a deep breath to calm his intense emotions.

She said in a low voice: "I'm fine. I know that kindness cannot lead to war."

No matter how sad it is, this battle will happen with or without Xi Mingming.

Sect Leader Xi stood up and said in a deep voice: "Notify everyone to launch the attack according to the original plan and make a quick decision. Dadu Bijia Khan and Zong Luohou will return to me. Kankan, you will immediately rush to Yuchi Jingde and tell him that his mission is to resolve the battlefield. As for Xue Rengao, the enemy of ten thousand people, you will be responsible for it yourself. Can you do it?"

Kneeling on one knee, Kwan said solemnly, "Kwan will definitely bring Xue Rengao's head to me."

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At the same time, Li Yuan's envoy Yuwen Xin finally met Shibi Khan.