Who will help me write a paper on foreign policy during the Qin Shihuang period? The more detailed, the better.

The question you gave is a little vague. The period of the first emperor should refer to the period after the unification of Qin. At this stage, there is no big foreign policy, just digging a canal and opening up southern Xinjiang.

Let me give you some information. Look at it! Integrate into yourself!

1. Lian Heng, jointly referred to as Lian Heng, was a foreign and military policy advocated and implemented by military strategists during the Warring States period. Su Qin once joined forces with "the whole world gathered in Zhao to attack Qin" ("The Warring States Policy, Qin Ce III"), lobbying the governors of the six countries to unite and explore the state of Qin in the west. Qin is in the west, the land of six countries, and the north and the south are connected, so it is called Lian. Lian Heng is in direct opposition to the integration policy.

Zhang Yi once lobbied the six countries to let their colleagues work for the State of Qin. During the Warring States Period, Qi, Chu, Yan, Han, Zhao, Wei and Qin coexisted. In the mid-Warring States period, Qi and Qin were the most powerful countries, facing each other and fighting for allies in order to defeat each other. Not to be outdone, the other five countries sometimes confront and sometimes unite with Chyi Chin. Conflicts between major powers intensified and diplomatic activities became more frequent, which led to the struggle between Zonghe and Lian Heng.

The essence of United Lian Heng is the diplomatic and military struggle for the country by the great powers during the Warring States Period. Vertical integration means that the two countries unite to deal with the powerful countries and prevent Chyi Chin from annexing the weak countries. Lian Heng is the Qin or Qi State wooing some countries and attacking others. The purpose of integration is to unite many weak countries against a strong country and prevent the merger of strong countries. The purpose of Lian Heng is to serve the powerful countries and attack other weak countries, so as to achieve the purpose of annexing and expanding land. The most famous military strategists at that time were Su Qin and Zhang Yi, and Gongsun Yan.

At first, Concord and Lian Heng were fickle. Gongsun Yan, Zhang Yi, Su Qin and others lobbied in various countries to form an alliance with Qin. Lian Heng can unite Qin and Qi, which is called "chop chop". Later, because Qin's power became more and more powerful, it posed the same threat to the six eastern countries, so the alliance became the joint resistance of the six countries, while Lian Heng was the alliance of the six countries with Qin for peace. The purpose of Qin's activities in Lian Heng is to destroy the alliance among the six countries, so as to isolate them and split them one by one.

Gongsun Yan joined forces with Wei, Zhao, Han, Yan and Chu to attack Qin in 3 18. At that time, people said, "Aren't Gongsun Yan and Zhang Yi sincere men? Anger is the fear of the princes, and peace is the destruction of the world. " (Mencius under Teng Wengong) Later, Su Qin and Zhao's Yang Jun Li Dui also joined forces with five countries to attack Qin in 287, forcing Qin to abolish the title of emperor, which had a great influence. However, Zhang Yi's Lian Heng strategy in Qin achieved greater success, which enabled Qin Wanghui to "pull out the land of Sanchuan, merge Bashu in the west, take the county in the north and Hanzhong in the south" and "disperse the submission of the six countries (vertically) to make it a matter of Western Qin" (Biography of Historical Records and Lisi), thus truly achieving the goal of annexing land through the implementation of the Lian Heng policy. The United Horizontal Struggle adapted to the needs of the development of the Warring States situation and had a great influence on the politics of various countries, and its historical role should be paid attention to.

Allusions:

One day in 3 13 BC, Zhang Yi, an envoy of the State of Qin, came to Chu and said to Chu Huaiwang, "The king of Qin is willing to form a brotherly country with the king of Qi. If the King of Qi can break off diplomatic relations with Qi, Qin will give 600 Li of land, and the two countries will be reconciled from then on. " Chu Huaiwang was very happy to hear this, so he agreed, and sent messengers to the State of Qin to take over the land with Zhang Yi. However, as soon as she entered the territory of the State of Qin, Zhang Yi pretended to fall from the car, claiming that she was ill and refused to meet the envoy of the State of Chu. When Chu Huaiwang saw that the king of Qin refused to offer his land, he thought that the king of Qin was worried that the friendship between Chu and Qi was not thorough enough, so he sent people north to scold the king of Qi. The king of Qi was furious, broke with Chu and made an alliance with Qin. When the Chu envoy asked Zhang Yi for land again, Zhang Yi said, "You can't have the land of 600 miles. You must have misheard me. Only six Li wide. " Chu Huaiwang found himself cheated and decided to send troops to attack the State of Qin. As a result, it was attacked by Qin and Qi, and Chu was defeated. Then in the battle of Lantian, Chu was defeated by Qin and divided into two cities. Since then, Chu has never recovered. This is a typical example of Zhang Yi's adoption of Lian Heng policy to help the king of Qin alienate enemy allies and expand Qin's influence.

2. Strategically, we should first pursue the policy of "dealing with foreign countries first", and first sweep away the political power of various ethnic minorities in China, so that the country has no domestic troubles and foreign invasion. Externally, its 400-500-year war against foreigners in the northwest forced the nationalities in the north and west to either move westward or accept the rule of Qin. Because of this war against foreign countries, Qin had no powerful enemies in the north and the west, and it also avoided fighting on two fronts when fighting against eastern countries. Of course, the 400-500-year anti-Japanese movement of Qin also made the name of Qin famous in the western regions and gave China a name: China.

Secondly, Qin skillfully used the strategy of "making friends far away and attacking near" and broke through all the countries to be treated.