When the Yuwen clan in Guanzhong competed with the Central Plains, its military focus was on the mountains and rivers controlled by several passes. However, when the situation in the Guanlong area was chaotic in the Xu, Zhou, and Qin, the control of the situation in Guanlong depended on the control of the highlands in the northwest of Guanzhong. The northwest highlands of Guanzhong are the military center of gravity in the Guanlong region, and they play a pivotal role in determining the situation in the hinterland of Guanzhong.

The northwest peripheral highlands of Guanzhong, with Longshan as the main body, extend to a part of the Loess Plateau, roughly including Tianshui, Pingliang, Qingyang in the west and Yan'an in the east. This area is high enough to overlook Guanzhong. It is easier to approach the hinterland from here, but it is more difficult to attack from the hinterland.

This area is mainly a plateau and mountainous terrain, and several major rivers in the hinterland of Guanzhong, such as the Wei River, the Jing River, the Luo River and their tributaries, all originate here, and flow into the hinterland of the Guanzhong Plain in a centripetal shape. The low mouth of the mountains formed by the cutting of these rivers is the passage between the northwest region and the hinterland of Guanzhong. After the generation management, a number of important military towns have been formed, and the more important ones are Qingyang, Pingliang, Guyuan, Jingzhou, Longxi, Tianshui and Longzhou. On the one hand, these important military towns played an important role in resisting the pressure of ethnic minorities in the northwest against Guanzhong, and on the other hand, they also had a great impact on the stability of the situation in Guanzhong.

Qingyang, Pingliang and Guyuan are located on the Loess Plateau in the upper reaches of the Jingshui Basin, and the road to Guanzhong through the Jingshui River Valley is very easy. Since the Qin and Han dynasties, it has always been an important place to resist the invasion of the northwestern tribes of Guanzhong. In the Western Han Dynasty, it belonged to Anding County. The county is named after stability, which means that the stability of Guanzhong is tied to this place. The book of war called Qingyang "Nanwei Guan Fu." North Imperial Qiangrong. Fu Qingyang has a policeman. And to the south of Suining, the disaster is peeled off, and the form of aid can be slowed down! ”

It is called Pingliang "the mountains and rivers are dangerous, and the border is controlled, and Yi is the key meeting." "Called Jingzhou" is surrounded by mountains and rivers, and water and land circulate. There is something going on in Lingbei, and the state is really a hole.

In the process of the supremacy of the late Sui Dynasty, Yuwen, Liu Wuzhou, and Xue Juqun competed for Guanlong, and it had a pivotal position.

Longzhou and Tianshui stand on the east and west sides of Longshan Mountain, and control the road that crosses Longshan along the Weishui River Valley. Longshan was originally the western barrier of Guanzhong. However, if there is a force from Longxi to the east, the situation in Guanzhong is unfavorable, so Longzhou and Tianshui are of great significance to the control of the situation in Longshan. The book of soldiers called Longzhou "the danger of choking the bottom of Long, controlling the rush of Qin and Feng." It is an important town in Guanzhong. "Called Tianshui" when the meeting of Guan Long, between Jieyong and Liang, Yi is an important town. Yu Yunwen said: Guanzhong, the upstream of the big down; Longyou, the upper reaches of Guanzhong. And Qinzhou is the mouthpiece of Guanlong"

It's a pity that these strategic places are basically taken by Xue Ju, although there are countless battles between Yuwen Xu Guo and Xue Ju's Western Qin, but the two sides have repeatedly tug-of-war, even if they are as strong as Yuwen Chengdu and such a fierce general, plus Wei Wensheng is a famous general. In the end, it can only be guarded behind Longshan. In the struggle between Guanzhong and Longyou, the strategic initiative was basically in the hands of Xue Ju's Western Qin. If it weren't for Yuwen Chengdu that hit Western Qin hard, maybe Chang'an would have fallen into the hands of Xue Ju.

To the west of Longshan, that is, Longxi County is one of the major centers of gravity. Longxi was Longxi County in the Qin and Han dynasties, and the history called it "wings cover Qin Long, control and strangle Qiangrong." Cover the valley dispute, the Kawahara loops, its vulgar strength, repair war preparations, good field hunting. Diligent farming, since ancient times, the country of military force. Sincerity in this and ploughing and tun, to defend and fight, east to Qin, Long, and Yong, Qi shoulders sparse; South down the steps, into the city. And Liang and Yizhi have bad throats; The west refers to the Lan and Hui, and the river and Huang are the essentials. Gongchang is not a place of nothing. The husband wants to keep the customs in the middle. first solidified the right of Long; If you want to consolidate Longright, Gongchang is not the place of the metropolis! ”

In the north direction of Guanzhong, there are two barriers for its protection, from Yan'an, Suide to Yulin, Lingwu in the west, and Shanxi in the east of the Yellow River, which is the first heavy; From this to the north, the Yellow River is blocked across the Hetao area, which is the second heaviest. The area from Yan'an, Suide to Yulin, that is, the Shangjun area in the Qin and Han dynasties. The Qin and Han dynasties resisted the Xiongnu and the Northern Zhou Dynasty to defend against the Turks, and they were all important defensive places here.

The above is a general situation of the geographical situation in the northwest periphery of Guanzhong. This area is a plateau and mountainous terrain, with high terrain, which is the military center of gravity of Guanlong, which is of great significance to the security of Guanzhong and the control of the military situation in Guanlong.

At the end of the Sui Dynasty, the center of the world had been transferred from Chang'an to Luoyang, the eastern capital.

When the building is about to collapse and the Quartet raises troops, the land of Guanlong is also surging.

Guo Zihe raised troops in Yulin, Zhang Changxun raised troops in Wuyuan, Liang Shi raised troops in Shuofang, Xue raised troops in Jincheng, Li Liang raised troops in Wuwei, and Zhou Zhao was based on Shangluo.

At that time, Wei Wensheng was left behind, and Wei Wensheng did not have the heart to stand on his own at first, Yang Guangyanmen was surrounded, and he raised the soldiers of Guanzhong to go north to King Qin. In the end, when Yang Guang was critically ill and the forces of all parties fought in Hedong, Wei Wensheng and Yu Wenhua and the representatives of this Guanlong force were defeated and returned to the small imperial court of Guanzhong, which had already missed the best opportunity.

Although in the end, they set up their own small court in the name of Yang Yu and unified Guanzhong, but Longshang and Longyou all fell into the hands of other heroes.

Relying on the danger of the four stops in Guanzhong, although he barely maintained the land in Guanzhong, when he expanded externally, he suffered many difficulties. In the final analysis, it is still because of congenital deficiencies, and all the strategic places in the Guanzhong are in his hands, and he has lost the upper hand.

After Yu Wenhua and the emperor, he also wanted to take Guanzhong as the center countless times, and then sweep the Longshang Longright, and then take Guanlong as the foundation, and get Longwang Shu, Ping Hanzhong, and Swallow Shu. At that time, the rear was stable, the north could go out of the east of the river, the south could map Jingxiang, and the east could map the Central Plains.

It's just that although this strategic layout is good, after several years, it has only barely maintained the stability of Guanzhong, and the expansion has not been able to take half a step. It has always been confined to the plain of Guanzhong.

This is a dead end, the strife in the world is gradually fierce, and every day passes, the unity of the world is closer to a point. The forces of all parties fought and merged with each other, but there was no change in Guanzhong, which has always been a place that makes Yu Wenhua and his heart uneasy.

Breaking the situation, only by breaking the situation, Xu Guo in Guanzhong can have a glimmer of life. But how to break this game?

The land of Guanzhong has a high building and overlooking the Central Plains and Shu Han. Correspondingly, the land of Longshang, Longyou, and Hexi also has a tendency to overlook Guanzhong. Not to solve this problem. Guanzhong will always be in a dangerous stalemate.

That's why. Yu Wenhua is so enthusiastic about the Eight-Nation Alliance, and he can't wait to secretly form another alliance. All in order to break this deadlock.

Previously, Yu Wenhua and Li Liang, who had always been good with Hexi, because Xue Ju of Western Qin had a strategic advantage over Guanzhong, and Hexi was the same for Longxi. At that time, he pinned his hopes on Li Rail, hoping to use Li Rail to break the deadlock, but unfortunately Li Rail was based on the land west of the river, although the territory was large, but after all, it was still a poor land on the border. There are few soldiers. In addition, Li Liang is a small and wealthy person, and he does not want to forge ahead, and he has no heart for a tyrant at all.

Under his provocation, Xiliang and Xiqin fought several times. But the result is nothing more than tepid, and it is another stalemate entirely.

This stalemate has been too long, so long that Yu Wenhua, who has always been patient, has lost patience.

Fortunately, the time for this breakthrough is finally coming.

In the middle school field of Xiaoguan City, the armies of Xu, Hou Zhou, and Western Qin have arrived one after another, and 100,000 soldiers and horses will crowd a huge Xiaoguan. The grain and grass of Xiliang Country are also being transported into the Guanzhong in a steady stream, and the grain and grass from Hexi to Guanzhong or to the east of the river are too far away, and it is very impossible to row. But. Li Liang was not too willing to send troops to the alliance this time, and the Tuyuhun tribe in the northwest was about to move recently, and it seemed that there was a plan to restore the country. To the southwest, the wars between the various tribes on the plateau have ended, and a powerful tribe has emerged victorious.

Although separated from the plateau, Li Liang still felt this newly rising force. The Ili Khanate, in addition to the northwest, also seems to have ambitions for restoration with the support of the Turks. For a time, the pressure doubled around the barren Hexi.

Xiliang dispatched troops everywhere. There is no room for troops to be sent to join the coalition. However, Yu Wenhua and the Turks were of course unwilling to let Li Liang go, and at this time, they were either friends or enemies. If you don't join the Allies, you would be enemies of the Allies. In the end, Li Liang had no choice but to give 100,000 stones of grain and grass. and a million dollars are considered the cost of joining the alliance, and the matter is settled.

50,000 Xu troops. After 30,000 Zhou troops, 20,000 Western Qin troops have arrived. This time, the 100,000 coalition troops of the four northwestern countries, Yuwen Chengdu was the marshal, Liu Wuzhou's henchman Yuan Junzhang was the marching Sima of the coalition army, Xue Ju's subordinate general Luo Hu was the marching chief, and Li Lianghu's Shangshu An Xiuren was the commander of the coalition army.

At this time, all the soldiers and horses, and the generals had already arrived, but Marshal Yuwen Chengdu did not come because of the town guarding Tongguan. The coalition army was temporarily commanded by Wei Wensheng, and after the grain and grass arrived, Wei Wensheng led him to Tongguan, and then handed over to Yuwen Chengdu, and he succeeded to the post of commander of Tongguan.

The situation on Xiao Guan's side, Chen Kedi, who was in Longshan Mountain hundreds of miles away, had already grasped it clearly. In the past few days, Chen Jun has arranged a large number of scouts to infiltrate Xiaoguan City, and he has a very clear control of all kinds of intelligence in Xiaoguan City.

Now, everything is ready, only the east wind is owed.

The night was deep, and in the camp in the valley forest, Chen Kedi couldn't sleep at night, tossing and turning. In the end, he simply sat up, lifted the tent, sat under the tree and blew the cold wind, looking at the moonless starlight.

The sound of rustling came from behind him. Chen Kedi looked back, but it was Hu Hai and Xu Shiji, Su Lie, and Shan Xiongxin.

"Can't sleep?"

"yes, you can't sleep either?"

"Hehe, it's all this time, where to sleep, just wait for tomorrow when it gets dark to do it, this time is full of excitement, where to sleep." Hu Hai said with a smile.

"Worried?" Chen Kedi asked softly. Although he is the main general, he is still very polite to other generals, after all, anyone is more qualified than him.

Hu Hai grinned, and under the slight moonlight, his face was full of indifference. "What is there to worry about, it's just that today's scene reminds me of when I was in Liaodong, and I remember that day was also the evening, His Majesty carried Marshal Li Benlei back from the Chinese army camp, and then told us very seriously. Said that His Majesty had an order, let us break the barracks for the whole army, and stay in Liaodong for half a month. Hehe, at that time, there were only 3,000 people in the broken military camp, and Liaodong, which was the territory of the Goguryeo people, was ten miles away in Liaodong City, and there were tens of thousands of enemy troops. However, at that time, none of the brothers were afraid, and their hearts were full of enthusiasm! ”

Chen Kedi laughed silently, yes, how could he think so. What kind of person is Hu Hai, even if he is temporarily degraded, but he is also the Yuan Zuo beside His Majesty, since the beginning of the army in Liaodong, how many wars have he experienced, how many times he has been born and died, and how many bloody battles, how can such a person be worried. Looking at the other people around me, which one of them is not a fierce battle, I'm afraid that they are not worried at all now, but excited.

"My lance is already hungry and thirsty!" In the night wind, Shan Xiongxin, who had been silent, suddenly snorted.

The night breeze is blowing, and the frost and dew are slightly cold. The thick black clouds were overwhelming, and the sentinels standing guard in the distance, the spears in their hands were as unswerving as steel, and together with the horses at their sides, they were silhouetted by the starlight into a masculine and strong image. (To be continued.) If you like this work, you are welcome to vote for recommendation and monthly passes, and your support is my biggest motivation. )

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