After the Battle of Yashan, the Song Dynasty had already perished, and the Japanese had to travel all over Dai Xiao. Why did Japan admire the weak Song Dynasty? There are two main reasons. First, there was no foreign invasion of the Central Plains in ancient China until the Song Dynasty. From Qin and Han Dynasties to Tang and Song Dynasties, China's culture was inherited, and Japan was deeply influenced by Chinese civilization. With the demise of the Song Dynasty, Japan also felt that its cultural roots were gone.

Second, although the Song Dynasty was weak militarily, it was still strong in many aspects, such as economy and culture, and it was ahead of the world. At that time, the trade in the Song Dynasty almost monopolized Japan's economic resources, and Japan directly used the currency of the Song Dynasty at that time, which was the same monetary system as the two countries. It is this factor that makes Japan grateful for the Song Dynasty.

Let's go back to the Ming Dynasty. At that time, Zhu Yuanzhang sent people to Japan to ask Japan to pay tribute. Japan was not convinced and killed the minister sent by Zhu Yuanzhang. At that time, Zhu Yuanzhang was about to send troops to conquer, but considering the defeat of the Yuan Dynasty, he swallowed this tone shortly after the founding of the People's Republic of China. Later, Wanli sent 200,000 troops, which taught Japan a painful lesson.

Not to mention the Qing Dynasty. After the Japanese Reform, 1 invaded the Qing government. But for the Song Dynasty, the Japanese were famous for their respect. Not only do you pay the money obediently every year, but you even send women to carry on the family line. Song dynasty was the richest dynasty in the world at that time, and it was also a paradise that neighboring countries yearned for. Song Dynasty is a country with numerous fans, and Japan is one of them.

After the collapse of the Yuan and Song Dynasties, the Japanese thought that there was no Chinese culture behind the cliff mountain, so they called it Little Huaxia instead. So naturally look down on the Yuan, Ming and Qing Dynasties after the Song Dynasty, which was the last dynasty that China really admired Japanese.