Expand the territory-the first emperor laid the foundation of the Chinese empire from the beginning.

Compared with those who have lost their country and their monarch, it is full of ambition to destroy the governments of the six countries of Qin. However, the favored son of Qin was not intoxicated with the joy of victory at this time. While discussing the name of the emperor with officials and doctors and laying the foundation of the feudal political system, his eagle-like eyes scanned the territory of the newly established Daqin Empire, planning a grand blueprint for pacifying the four seas and expanding the territory; And those Qin Jun soldiers who have fought many battles and galloped on the battlefield, while drinking the wine of triumph, are also preparing their horses and waiting nervously for new marching orders. In fact, Qin Shihuang did not keep his iron army waiting for too long. When he and his think tank formulated the strategic policy of "caressing foreigners in the west, occupying Liaodong in the east and fighting Xiongnu in the south", Qin Jun, the master of this hero, embarked on a journey under siege. This time, Qin Jun Ice Peak points to Lingnan, which is called Nanping Baiyue in history.

Baiyue, also known as Baiyue, is named after the southern Vietnamese, which is a general term for the Vietnamese with different names. They have different cultural characteristics and symbols from the Central Plains, the most prominent features are the interruption of tattoos and the casting of bronze drums. Baiyue is widely distributed, and many tribes are also very mobile, covering a wide area south of Jianghuai. The close relationship between Baiyue and the Central Plains has a long history. It is said that as early as the period of five emperors and three kings, this area surrendered to the imperial power of the Central Plains. Ethnic groups in Lingnan once paid tribute to Wang Shang and Zhou Wang with local specialties such as pearls, hawksbill, ivory, rhinoceros and jadeite. During the Spring and Autumn Period, Yu Yue, who was born and lived in today's Zhejiang Province, once established Yue State, and the King of Yue Gou Jian learned a lesson for ten years. After ten years of living together, he was ranked among the five tyrants in the Spring and Autumn Period. In 306 BC, the State of Yue was conquered by the State of Chu, and most of the Jianghuai Valley was incorporated into the territory of the State of Chu. After the demise of Chu, the Yue people in Ou Yue, Min Yue, South Yue and Xi Ou were not tamed. In order to realize the unification of the world, Qin Shihuang ordered Tu Youyou to lead 500,000 troops into Lingnan in five ways. An army arrived in Guilin from Yuechengling today; An army went south from Mengzhuling to Guangxi and County; An army rode through Tian Ling and went straight down to Panyu and Guangzhou; An army entered northern Guangdong from Dayuling; An army assembled in Yugan, Jiangxi today. However, the South Vietnamese athletes with continuous tattoos are far stronger than Qin Jun's former rivals, and the local Vietnamese, especially the Xi 'ou people, are extremely tenacious in their resistance. Qin Jun went deep into the country, and more people fled. For a long time, food was scarce, people attacked it more and more, and Tetsujin was defeated. It is said that Qin Jun didn't understand armor for three years and didn't relax his crossbow. Qin Jun fought very hard in the wet, rainy, high mountain and dense forest south.

At the stalemate stage, the most difficult problem is to solve the logistics supply problem of 500,000 Qin Jun. In order to solve this problem, Qin Shihuang appointed Yu Shilu, a supervisor, to lead his soldiers to dig a canal between Hunan and Lishui to communicate the traffic between the Yangtze River and the Pearl River. The total length of Lingqu is 33 kilometers, including 4.5 kilometers of manual excavation, which is composed of spout, scale, drainage scale, steep gate, north-south canal, Qindi and other major projects. It is conceivable that the workload is huge and the task is arduous. Lingqu runs through hilly areas, with steep slopes and steep waters, making navigation difficult. At that time, in order to solve this problem, the designers of Lingqu deliberately cut the river circuitous to extend the flow, ease the flow rate and facilitate smooth navigation. At the same time, at regular intervals, the scarp is also called Doumen, which is a simple ship lock. It can be opened and closed to block the water flow in the channel, so that the water level can be raised or lowered step by step, and the ships can move forward step by step and cross the mountain safely. This is actually the design method of modern cascade shiplocks. In this way, the canal was dug in our country, which was more than 2000 years earlier than the Panama cascade canal built by the United States. To some extent, it reflects the ingenuity of Lingqu designers and the great creativity of working people in ancient China.

After the Lingqu was completed, Qin Jun's war against South Vietnam went smoothly. In the struggle with the Ou people, Xu Zong, an Ou translator, and Tu Youyou, the governor, died one after another. After Xu Zong's death, Xi 'ou people took Jie Jun as the general and continued to fight Qin Jun. Qin Jun paid more than 100,000 lives for it. In 2 14 BC, Qin Shihuang reinforced fugitives, husbands and businessmen in Neixian County, and established Nanhai County, Xiang Jun County and Guilin County in Nanyue, Western Europe and its adjacent areas, placing these three counties under the direct control of the central government and appointing Ren Yao and Zhao Tuo to guard Lingnan. In the second year, Qin Shihuang sent 500,000 criminals to the south of Wuling to fill the sea, and all of them stayed there to live with the Vietnamese, which promoted the economic and cultural exchanges between the Central Plains and Lingnan and the first great integration of the North and South nationalities in China's history, developed the rich Pearl River basin and formed a new social order and culture.

At the same time as Nanping Baiyue, there are also westerners. When the Qin Dynasty was just established, in addition to Baiyue, the ethnic tribe called Southwest Yi by the Central Plains, there were dozens of ethnic minorities living in the southwest, which is today's Sichuan, Yunnan and Guizhou areas. Southwest Yi was closely related to the kingship of the Central Plains in Shang Dynasty. It is said that some tribes in this area once participated in activities to overthrow the Shang Dynasty and were rewarded by the Western Zhou Dynasty. During the Warring States Period, Dianchi Lake belonged to the State of Chu. In 3 10 BC, after King Qin Huiwen destroyed Shu, he took Shu as the base and began to operate southwest Yi outside Bashu.

In 246 BC, Ying Zheng became the King of Qin, and continued to explore Southwest Yi based on Shu. First of all, in terms of road construction, during his tenure as the magistrate of Shu County, Li Bing once cut a mountain and cut a cliff in the Daodao area at the junction of Sichuan and Yunnan, and built a road leading to southwest Yi, which was the beginning of the construction of Wuchi Road. After the unification of the six countries, Ying Zheng, king of Qin, once again sent Chang Yan to repair Wuchi Road. Chang 'e extended Li Bingxiu's road from Yibin City, Sichuan Province to Qujing City, Yunnan Province. This historically famous Wuchi Road is one of the oldest communication lines in the economic and cultural exchanges between southwest China and the Central Plains. During the Western Han Dynasty, this foreign communication line was first discovered by Zhang Qian, and it was then called Shu-Shen National Road.

The Qin Dynasty not only built roads in southwest Yi, but also introduced its county system into some areas in southwest Yi. The Qin Dynasty often had a little access to Wuchi Road, which was quite an official place. More than ten years old, Qin destroyed, Joan, Yan and Ran were close to Shu, and the road was easy to pass. Qin is Chang 'an County. Qionglai, Ruan and Ran in this country are all ethnic groups in the southwest of China. Qin dynasty distributed in the border area of Sichuan and Yunnan. After Qin unified the six countries, it set up an official county and sent officials to rule directly. Now, historians regard this as the beginning of the central dynasty's formal rule of southwest China.

Compared with western countries, it was much more difficult for the Qin Dynasty to manage the northern frontier. At the same time of the rise of the Daqin Empire, the Xiongnu Empire also rose secretly in the northern part of China. In fact, the Huns' invasion of the Central Plains has long plagued the vassal States of the Central Plains, among which Qin, Yan, Zhao and other countries suffered the most. To the north of Qin, there are Yi Qurong, and further north, there are Huns; There are loufan in the northwest of Zhao, and Yan and Xiongnu in the north. There is East Lake in the northern boundary of Yan State. These northern minority regimes, except Yi Qurong engaged in agricultural production, all made a living by nomadic and hunting. Xiongnu, Donghu and other nomadic peoples have high military quality and strong combat capability. According to historical records and biographies of Huns, Huns lived by nomadic and hunting, and horses, cattle and sheep were the most livestock, followed by camels, donkeys and mules.

They migrate by water plants, do not live in cities, and do not plow fields. But there are differences. Men have learned to ride and shoot since childhood. Children can ride sheep and shoot birds and mice with bows; If it grows less, it will shoot foxes and rabbits; Use it to make food. So, when you come of age, you are a rider. During the Warring States period, the Huns had entered the slave society and had state power institutions. The king is called Khan, and there are left and right sages, left and right kings, left and right generals, left and right commanders, left and right leaders, and left and right leaders. Except for the right and left ministers, all the other ministers are hereditary. East Lake, Yan and Loufan are basically the same as Xiongnu.