The time Hu Chuan lived, from the year after the Opium War to the year after the Sino-Japanese War of Sino-Japanese War, was a time when the Chinese nation was frequently invaded by foreign powers and suffered many disasters.As a patriotic intellectual, seeing the country's crisis, he was most worried about the aggression of the northern imperial Russia. He once said that "China's troubles lie in the northwest, and the beginning must start in the northeast."At that time, Hu Chuan, who was in his late forties, lost his old wife and his official fortune was not prosperous, so he went north alone and traveled to the three eastern provinces...