Why did Korea move its capital to Xinzheng?

Related to Xinzheng terrain, it has the advantage of being easy to defend but difficult to attack.

In 375 BC, Han Aihou sent troops to capture Xinzheng, the capital of Zheng State, and moved the capital to Xinzheng. The war between Korea and Zheng ended with Zheng's demise. For South Korea, after the destruction of Zheng, it moved its capital from Yangzhai to Xinzheng, which is now around xinzheng city, Zhengzhou City, Henan Province.

Xinzheng city is located at the eastern end of Qinling zonal structure, in the transition zone from the mountainous area in western Henan to the plain in eastern Henan. The terrain is high in the west and low in the east, high in the middle and low in the north and south. There are mountains, hills, hills and plains. Mountainous hills are concentrated in the southwest and west, and are the eastern edge of Songshan Mountain. They are mainly composed of Lushan Mountain, Jucishan Mountain, Taishan Mountain, Meishan Mountain and Baoshan Baoyu Mountain.

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Korean descent:

Qu Wohuan's uncle, Han Wan, was awarded the title of Korean clan by Qu Wokejin for assisting Qu Wowugong, and became a famous minister in Han Xianzi's reign, which was spread to Han Kang Zi. From 455 to 453 years ago, Han Kang and Wei Huanzi were ordered by Zhi Bo to crusade against Zhao Xiangzi in the battle of Jinyang.

Finally, Han and Wei rebelled, together with them, destroyed Zhibo and carved up all the grain cities of Zhibo. Since then, Han, Zhao and Wei Sanqing have dominated the Jin Dynasty. In the first 403 years, Zhou recognized Jin Sanqing as a vassal, and South Korea was formally established.