Yue Fei is really a pedantic loyal minister. To say the reason of loyalty, we must first choose the country loyal to our own nation, the Chinese nation, and then the Song Dynasty, but Yue Fei is only loyal to Zhao. If Yue Fei dies, maybe we can drive the Jin people out of the north of the Great Wall and save a large number of Han people who fell in the north, so that they don't have to be in dire straits under the rule of the Jin people. If Yue Fei dies, the Song Dynasty may be able to recapture the north, reunify the dynasty, and have more power against Xixia, Jin and Mongolia. But Yue Fei died, only for Zhao. The last army of the Song Dynasty collapsed and the last army of the Chinese nation dissipated. The Mongols came in, and there was a "difficult mountain" in China and Song Dynasty! There is also a comment in history that there is no China after Yashan.