Chang'an has been the largest city in the world and even the largest city in the world for a long time.

From the Western Zhou Dynasty to the current capital of Xu State, twenty-one dynasties have established their capital here. It has been more than a thousand years since the capital of Chang'an City. This land in Guanzhong is a truly famous place for dragon success.

Although Emperor Yang Jian of Sui built a new city in his early years and renamed it Daxing City, the people of Chang'an were actually more accustomed to calling this thousand-year-old capital Chang'an City. Wannian and Chang'an counties under Chang'an City combined have the meaning of long-lasting peace and stability.

During the Kaihuang period, the population of Chang'an was as large as one million. In addition to residents, royal families, nobles, soldiers, slaves and servants, Buddhists, Taoists, monks and nuns, and other ethnic groups, there were no less than tens of thousands of foreign merchants, envoys, overseas students, monks and monks. At that time, there were more than 300 tribes in the country that came to Chang'an to join the Sui Dynasty.

The eight rivers of Wei, Jing, Feng, Lao, Hua, Hua, Hua, Hua, and Ba, and the eight rivers surround Chang'an, and the heroes occupy the source of Longshou.

The four barriers of Guanshan Mountains and the hundred and two Qin Passes.

Chang'an, which lives in Guanzhong, is not only a powerful city in the world, but also a strong fortress.

Although the chaos during the Han Dynasty caused great damage to Guanzhong, the Eastern Han Dynasty, Cao Wei and Western Jin Dynasty capital Luoyang but not Chang'an. However, the Eastern Han Dynasty implemented the system of the Three Capitals, and the Cao Wei implemented the system of the Five Capitals, all of which were Chang'an as the Western Capital. Emperor Wu of the Western Jin Dynasty made a system of stone Han, which stipulated that only the royal family could not control Guanzhong. During the Southern and Northern Dynasties, the Western Wei, Northern Zhou, and Great Sui were all in Chang'an. In addition to the prosperity of Chang'an, it was more due to the dangers of Chang'an.

At the end of the Jin Dynasty, Liu Yao, the general of the Huns Liu Han, entered Guanzhong to attack Guanzhong, captured Emperor Min of Jin, and the Western Jin Dynasty was destroyed. Liu Yao established the Former Zhao in the substitution of Liu Han, moved to Guanzhong, and established the capital of Chang'an. Front and Later Zhao confronted the north. Later Zhao unified the north and soon collapsed. The Di people traveled west to enter the Former Qin and established the capital of Chang'an. The Former Qin unified the north during the Fu Jian period. After the Battle of Feishui, the Former Qin collapsed. Yao Qi, a Qiang man, briefly determined Guanzhong. Established the Later Qin, established the capital of Chang'an, and changed its name to Chang'an. After the fall of Later Qin, Guanzhong was also occupied by Helian Xia. The Northern Wei entered the Central Plains and unified the north. "The Change of Heyin?", the Northern Wei Dynasty, after the Northern Wei Dynasty, was the Northern Wei Dynasty, and the "Changyin Change?"

In turmoil, Gao Huan followed Erzhu Rong's rise. He wanted to summon Hebayue's grand ceremony in Guanxi to move to Guanzhong. Xue Xiao, the subordinate of Hebayue, advised Yue not to go to the summon, saying: "Now, all the heroes and men of Guanzhong are in love with the Lord, and they are willing to use their intelligence. The Lord regards Huashan as a city and the Yellow River as a trench. Advance can be used as Shandong. Retreat can be sealed with Hangu. But he wants to be controlled by others!" Hebayue followed his plan and then pacified Guanlong with Yuwen Tai. Later, Yuwen Tai welcomed Emperor Xiaowu of the Northern Wei into Guanzhong, established the Western Wei, established the capital of Chang'an, and confronted the Eastern Wei established by Gao Huan. The Western Wei in the Northern Zhou Dynasty also capitaled on Chang'an. The Northern Zhou Dynasty destroyed the Northern Qi and unified the north.

In the Northern Zhou Dynasty of the Sui Dynasty, the capital was still Chang'an.

The Sui Dynasty destroyed Chen and unified the world. At the end of the Sui Dynasty, Yang Xuangan raised an army and asked Li Mi for advice. Li Mi claimed that Emperor Yang of Sui was far away in Liaodong and advocated driving into Ji, strangling his throat, or taking Chang'an directly. He said: "The four passes in Guanzhong, the country of Tianfu. Although Wei Wensheng was promoted, it was not worthy of attention. A general led all drums walked west. Passing through the city, he did not attack directly. He took his heroes, pacified his men and people, and guarded them in danger. Although the emperor returned, he lost his foundation, so he could be Xu Tu."

Yang Xuangan was defeated and killed. Later, Li Mi and Zhai Rang raised an army in the Central Plains, but the situation was not opened up. Chai Xiaohe, the subordinate of Li Mi, suggested: "The mountains and rivers of Qin are solid, and the Qin and Han dynasties are the ones that can be relied on to become kings. Now it is better to let Zhai Situ guard Luokou, Pei Zhuguo guard Huiluo, and Ming Duke simplified his elite troops to attack Chang'an in the west. After conquering the capital, his army was strong and his troops were strong, and then he went east to Pinghe and Luo, and sent an edict to the world. Now the Sui Dynasty lost its deer and the heroes competed for it. If he didn't do it early, there would be someone who would be ahead of me, and he would regret it!"

Li Mi did not implement this policy due to many concerns.

Later, Li Shimin suggested to Li Yuan: "The heroes of Guanzhong emerged together, and they were not known to be attached to him. If the Duke walked west and stroked him, he would be like something in his pocket." Li Yuan followed his plan and headed south to the west to prepare to enter the pass, but was blocked by Yang Ming, Wang Shichong and Yuwen Chengdu in Hedong. He was finally defeated by Longmen and could not enter Chang'an.

At the end of the Sui Dynasty, the heroes competed for hegemony. Yu Wenji was originally just a playboy, but after getting the struggle between the nobles of Guanlong, he relied on the natural dangers of Guanzhong to guard Chang'an, and instead watched the world rise and fall. When the wars were on the rise in the Central Plains, Yu Wenji was firmly sitting in Guanzhong.

He even sent troops several times, with the ambition to seize Hedong, swallow Hanzhong, and Shuzhong.

Although the heroes in Longshang and Longyou coveted Guanzhong more than once and wanted to compete for Chang'an. However, with the dangers of the four barriers in Guanzhong, Yu Wenji was repeatedly defeated. When the leaders of the world's righteous army Li Mi, the heroes Wang Shixiong, Dou Jiande, Sun Changxun, Liang Shidu and others were defeated one after another, this theory of Yu Wenji was obviously not as good as theirs, but instead laughed to the end and became one of the eight heroes in the world today.

All of this is naturally due to the dangers in Guanzhong.

Guanzhong has a unique geographical situation. The world's terrain is high in the west and low in the east, and is divided into three steps from west to east. Guanzhong is located at the second staircase of the world's terrain, with the plateau mountains backed by the first staircase and the plains of the third staircase. There are Qinling Mountains in the south of Guanzhong, Longshan Mountains extending in the four directions, Loess Plateau in the north, Huashan Mountains, Goshan Mountains and southwest Shanxi Mountains, and it is surrounded by the Yellow River. It can be said to be surrounded by mountains and rivers, with a large momentum.

Gathering. "Hundred and Two Qin Pass" is used to describe the dangers of Guanzhong. It means that a million people attack Guanzhong, and 20,000 people are enough to resist it. A 20,000 army blocks a million people, and what they rely on is the dangers of the terrain. Guanzhong faces the Central Plains with a high-rise building on the terrain, with mountains and rivers on all sides as dangerous obstacles. Several important traffic channels are also set up to guard it, thus forming a situation where you can advance, retreat, attack and defend.

The Hundred and Two Qin Pass has a dangerous situation of resisting millions of people with 20,000 yuan. This is exactly the result of Yu Culture and how he can achieve today.

It is precisely because of the dangers of the four mountains and rivers and the hundred and two Qin Passes that the people of Chang'an City, the center of Guanzhong, have never really experienced the war in the war at the end of the Sui Dynasty. The most dangerous time was that Xue Ju, the overlord of Western Qin, attacked a hundred miles away from Chang'an, and never made any progress again.

Many famous cities in the world, such as Jicheng, Yecheng, Hedong Jinyang, Shangdang, Central Plains Luoyang, Daliang, Huaisi Pengcheng, Xuzhou, Jiangdu, Shouchun, Jiankang, Jiujiang, Jianghan Jiangling, Jiangxia, Xiangyang, and even Hanzhong, were in the midst of war. When they fell several times, Chang'an was still prosperous.

Even in the war, the Silk Road that started in Chang'an in the east never stopped, and countless caravans on the Silk Road still came to Chang'an, bringing endless prosperity to Chang'an.

Living in Chang'an City, it seems that you can't feel the chaos in the world at this time. It seems that the world is still in the early years of Kaihuang and Daye of the Great Sui Dynasty.

When the envoys of the six countries came to the Chang'an Alliance, countless caravans flocked to Chang'an, adding countless excitement to Chang'an. The people of Chang'an became more and more happy. In their opinion, Chang'an had deviated from the position of the center of the world over the years due to wars, and finally came back.

These residents and people in the center of the world finally felt the superiority of others.

In Chang'an City, the curfew was even lifted for the alliance of the Six Nations, and Chang'an at night once again became a brightly lit city.

After all, Chang'an people have a kind of nobility in their bones, which is a foundation brought by the capital of the 21 dynasties, a thousand-year-old capital.

With the arrival of the six countries' missions, Chang'an finally became the center of the world again. Everyone was excited and the excitement of Chang'an people finally turned into carnival.

I don’t know when and who will start. Even if the curfew is lifted, the night market will end in the middle of the night and become a market all night. Various wine shops and restaurants are tall and lanterns are swaying, and the roars and cheers are filled with the streets.

The juggling skills that were originally held in the grand festival also surged into the long streets. Those who stepped on high, spitted fireballs, swallowed swords, and even sold big pills, all kinds of artists seemed to have poured into Chang'an all at once.

Foreign merchants stood under the eaves of the street and pointed and discussed excitedly, or listened to the old people around them with a smile to comment on the drama that they had not seen for many years. Under this excited carnival, even shops in the three major markets in Chang'an City began a price reduction carnival. A large red cloth was hung high in front of each shop, with a big word "happy", and the following is "falling eight" or "falling five" and "falling six".

During the carnival in Chang'an, there was a place that was very deserted, and even felt a kind of depression and anger.

This place is a large brothel in the city of Chang'an. On the surface, this brothel also took the guise of celebrating the carnival in this carnival, which made the brothel business even more popular. However, in a closely guarded backyard underground dark hall of the brothel, this is the base of the Guanzhong branch of the Chen Chao Special Service.

The arrival of the six countries' missions and the alliance between the seven countries and the Turks, all of this made the secret agents and officers of the Guanzhong Special Service Division very worried. The matter of the seven countries' alliance was discovered by them at the first time, and all the information found was also conveyed to Chang'an and sent to the Luoyang headquarters.

The alliance of the Seven Kingdoms is a great thing, and the alliance between the Seven Kingdoms and the Turks is even more a big deal.

Once this alliance is formed, it means that all the forces in the world outside of Da Chen not only stand on the opposite side of Da Chen, but have also united and even united the Turks. This is a powerful alliance, with 10% of the alliance, and Da Chen will be in all directions, and there will be no alliance, and there will be no neutral meter.

For a moment, the entire Guanzhong Special Service Branch entered a state of emergency. At the first moment, the Guanzhong branch activated all the hidden stakes, insiders, and even some top-level insiders that had been ambushed in Guanzhong. (To be continued...)
Chapter completed!