On the second day after the wedding, Li Yin left Chang'an with an army of 130,000 troops that had been ready for a long time, and went west to meet Xue Ju!

The territory occupied by Xue Ju of the Western Qin Dynasty is west of Longshan, east of the Daxia River, south of the Yellow River, and north of the Western Han River, which is the Gaotai area of present-day Gannan.

Longshan Mountain Range (Liupan Mountain Range), across the Qinlong area, from the northwest to the southeast, the average height is about 2,000 meters, the main ridge is in the northwest of the present-day Wating. The south of Huating County is called Longshan, and the boundary is between the two provinces of Shaanxi and Gansu.

The area west of Longshan, known as Longxi since ancient times, is also known as Longyou, Longxi Basin, the Yellow River and its tributaries irrigate it, even in modern times, it is still the main agricultural and grain producing area of Gan Province. The source of Weishui and the Jialing River is also here, and most of Xue Ju's territory is here.

To the east of Longshan and north of Qinling, it is the Jingwei Valley, which is rich in products, and is where the henchmen of Guanzhong are located, and is now occupied by Li Tang.

Therefore, the contradiction between Xue Ju and Li Tang is due to geography, and the two sides have been in a state of non-stop death from the beginning, and there is no possibility of reconciliation.

And the east of Longshan, to the north of the Guanbei to the area of Liangshan, the outer blocking of the river, the inner block of Longkou, the placket with Qin Liang, the support of Wei Jifu, has always been an important strategy in the hinterland of Guanzhong, it can be said that the safety of Guanzhong is tied to this.

Therefore, whoever is based on guarding Guanzhong and is against Longyou must be based on Pingliang, Anding, and Fufeng to block the east exit of Longshan, but at this time, these three places are in the hands of the Tang Dynasty, only the Fufeng area.

Fufeng County, now has been renamed Qizhou, living in the four mountains, the meeting of five waters (Wang, Wei, Qi, Qi, Yong), Longguan West Block (Longguan is Longdi, now Longxian West), Penmen South Choke (Penmen is Penmen Mountain, in the southwest of Baoji City fifteen miles, for the north valley of the Qinling Mountains, the ancient Penzhou border enters from this, hence the name. ), for the right auxiliary of Chang'an, so Xue Ju led a large army to attack Tang for the first time, and the target would be chosen here, but that attack was defeated by Li Shimin.

Anding County, that is, Jingzhou after Li Tang changed its name, the mountains and rivers here are still belted, water and land circulation, connecting China and foreign countries, and controlling things with things, which is really the key to Guanzhong, so when Xue Ju attacked Tang for the second time, he would change the Fufeng that failed in the first attack to here, and that time, he won a big victory.

After Li Yin led his troops west across Weishui, the pace of his march slowed down, and spread rumors to Xue Jujun that the reason for his slowing down was the discouragement of the army. The purpose of this is to promote the progress of the discord meter.

While slowing down the pace of the march and carrying out a discordant plan against Xue Jujun, Li Yin set his sights far away in the northwest of the Longyou region, where there are four counties of Lintao.

After the Li family entered the customs, the enemies of Xue Ju and Li Rail became the Li family, so the relationship eased slightly, so the snatching of the four counties of Lintao was slowed down, so these four counties were still neutral forces.

In order to strategically encircle the situation of Xue Ju's forces, Li Yin asked Fang Hong, who was good at argumentation, to send an envoy to the four counties of Lintao, so that the land of these four counties would be surrendered to the Tang Dynasty.

On the fifth day of the eighth month, Xue Ju sent the crown prince Xue Rengao to march to besiege Ningzhou, and Hu Yan, the Ningzhou assassin of the Tang Dynasty, repelled Xue Rengao.

After Xue Rengao returned from Ningzhou, Xue Ju scolded him for his casual slaughter of the people. Xue Ju often taught Xue Rengao to love the people, otherwise even if the entire Guanzhong was defeated, he would not be able to rule for a long time, but Xue Rengao did not make any progress, and often made brutal acts, which made Xue Ju feel quite a headache.

After Xue Rengao left from Xue Ju, he was in an irritable mood, and he didn't relieve his anger after killing a few slaves and attendants in a row, at this time, Xue Rengao's close minister Liang Hu Lang hurriedly walked over, and Xue Rengao asked Liang Hu Lang with an unkind look Why was he so flustered.

Liang Hulang didn't answer, but looked at the frightened slaves and servants around him, Xue Rengao waved his hand, and asked the others to retreat.

Only then did Liang Hulang whisper to Xue Rengao: "Crown Prince, something is wrong, I got the news, Your Majesty seems to think that you are too cruel, and plans to depose you and make Xue Renyue the crown prince!" ”

"What!" Xue Rengao was shocked when he heard this, and emotions such as panic, resentment, and jealousy all came to his heart.

Xue Renyue is the youngest son of Xue Ju, and was named the king of Jin by Xue Ju, and his personality is closest to Xue Ju, and he is often praised by Xue Ju in front of people, and even once when Xue Ju was drunk, he once revealed to his close ministers the idea of replacing Xue Renyue as the prince, and this news was told to him by the eunuch who Xue Rengao placed beside Xue Ju.

So at this time, when Liang Hulang told Xue Rengao again that Xue Ju was going to change the crown prince, Xue Rengao did not doubt the news, he showed a fierce light in his eyes at this time, gritted his teeth and said: "Since you are so unkind to me, father, don't blame me for not talking about the relationship between father and son!" ”

Recently, Xue Ju occasionally felt cold, but it was not a big deal, the imperial doctor said that he only needed to recuperate for a few days to recover, this night, Xue Rengao showed kindness, personally boiled medicine for Xue Ju, and respectfully served it in front of Xue Ju.

Xue Ju thought that Xue Rengao had finally changed his sex, and he was very pleased, and sighed that it was really the blessing of the ancestors and the ancestors, and there was no doubt that he drank the medicine that Xue Rengao boiled, and the medicine that ordinary people boiled for him, Xue Ju generally only drank a few sips, but this time Xue Rengao boiled for him, but he drank not a drop left.

The next day, the strategist Hao Ying said to Xue Ju: "Now that the Tang army has just been defeated, Guanzhong is in turmoil, and Li Yin's army is stagnant and demoralized, we should quickly defeat it, and then take advantage of the victory to capture Chang'an." ”

Xue Ju agreed with his opinion, immediately mobilized the army, and prepared to go east with all his might, but when he ordered the general, he suddenly felt that he couldn't breathe, and suddenly fainted to the ground.

Xue Ju seemed to finally understand something at this time, and raised his hand with difficulty and pointed at Xue Rengao, Xue Rengao immediately stepped forward, hugged Xue Ju's hand and cried bitterly, "Father, don't worry, I will definitely help you take care of the Xue family and manage Xiqin well!" ”

However, the strategist Hao Ying on the side frowned, because he felt that Xue Ju's eyes looking at Xue Rengao at this time did not seem to be like he was entrusting him with a heavy responsibility, but more like resentment and remorse......

On the ninth day of August, Xue Ju died, and a generation of heroes did not die on the battlefield, but died at the hands of their sons, which is sad and lamentable, and his plan to lead his troops east into Chang'an has no chance to be implemented.

On August 11, Xue Rengao succeeded to the throne and lived in Zhecheng, posthumously admonishing Xue Ju as Emperor Wu.