In 286 BC, the State of Qi destroyed the State of Song, which was once very powerful and caused anxiety among countries. Yan joined forces with Qin, Han, Zhao, Wei and other countries to cut Qi. In 284 BC, the Qi army was defeated in Jixi (now south of Liaocheng, Shandong). Since Yan Zhaowang ascended the throne, he has made great efforts, humbled himself and sought revenge. Qin and Wei are both highly valued.

It also agreed with Zhao, Wei, Chu and other countries to jointly cut Qi. In the thirty-first year of Zhou Nanwang (284 BC), the State of Yan and the armies of Yan, Zhao, Qin, Wei and Chu jointly attacked Qi, reaching the capital of Qi and seizing most of its territory. Tian Dan, the general of Qi State, used the internal contradictions of Yan State to expel the troops of Yan State and recover the lost land. However, Qi has lost its ability to compete with Qin.

2. Shang Yang's reform

During Qin Zixiao's reign, Shang Yang's political reform lasted for more than 100 years, after Qin Huiwen, Wu Wang and Wang Zhaoxiang. He established a relatively consolidated centralized rule, attached importance to water conservancy and agricultural production, rewarded military achievements, and the army was well equipped. He also made full use of Ke Qing to plan a campaign for the State of Qin, and the Vietnam War became more and more fierce in various vassal States, eventually defeating all the powerful opponents in the East and becoming the first power in the world.

3. Qin annexed six countries.

In the first year of Qin Dynasty (250), Li died, Qin Zhuang Xiang Wang succeeded to the throne, and the businessman was the prime minister. In the second year, he led the troops to destroy the Eastern Zhou State, took Han Zhicheng and Xingyang, and built Sanchuan County. The following year, attack Zhao and Korea, and set up Taiyuan County in Shangdang.

King Xiang of Zhuang collapsed in the third year (247 BC), and Zhao Zheng, the thirteen-year-old king of Qin (in the pre-Qin period, the surname was not uniform, and men called him by his surname, so Qin Shihuang was called Zhao Zheng. ) acceded to the throne, he is the later Qin Shihuang.

The Allies turned to attack Qi, an ally of Qin State, and captured Rao 'an (now southwest of Yanshan County, Hebei Province). In the sixth year of the King of Qin (24 1), the fourth and last military attack on Qin by Chu, Zhao, Wei and Han was crushed, and Wei Xinling, the most fierce anti-Qin, was also removed. At this point, in the face of Qin, which has a vast territory and is stronger than Mazhuang, the monarchs of the six eastern countries are similar to the chiefs of Qin.

Extended data:

During the Warring States period, under the monarch, the vassal state formed a central bureaucratic system with separation of official posts and separation of civil and military powers. Xiang, also known as Xiangbang and Prime Minister, is the first of all officials. A general, also known as a general, is the head of a military attache.

In the second year of King Wu (309 BC), the State of Qin began to set up a prime minister. The most distinguished prime minister was Xiangbang, and the highest military post was Liang Zuo at the beginning. It was not until King Qin Zhao established a general. Chu has always regarded Lingyin as the highest official position, or the Lord as the second highest military attache.

The second-level military attache in various countries is Wei, or Guo Wei. The secretary of the monarch is called the suggestion and has the responsibility of supervision. The setting of counties is more common, and the pattern of counties is gradually formed.

References:

Baidu Encyclopedia-Warring States Period (China Historical Period)