First, Tokugawa Ieyasu established his own shogunate and became a general to conquer foreigners. However, at that time, the whole Japanese state system did not change substantially, and it was still a feudal Lord system. Konka still followed the example of Muromachi shogunate and implemented the enfeoffment system for relatives, heroes and dignitaries. This is equivalent to the Western Zhou Dynasty in China. The biggest drawback of the enfeoffment system is that once the power of the central government is weakened, local warlords will naturally disobey orders. Those who are light ignore the central authorities, and those who are heavy rise up. This is the reason why Changzhou and Samoa formed an alliance to rebel in the later period. If the shogunate is powerful, Fan Er certainly can't expect anything. Secondly, the shogunate adopted a set of Confucian theories in China to educate the Japanese people, making them willing to obey, but closed to the outside world. The premise of obeying the people is that the economy is good, the country is not poor and the people can live and work in peace and contentment. Therefore, the Tokugawa era was smooth in the early stage, but after it was aborted in the later stage, a large amount of funds flowed out, prices soared, the shogunate was weak and incompetent at home, and domestic violence occurred frequently. After years of war, people began to complain. They can't obey the people. Therefore, when the shogunate conquered Changzhou Francisco for the second time, there was a mob grabbing food. At this rate, there is a great possibility of an uprising. In addition, the biggest drawback of behind closed doors is that new things can't be introduced, the news is blocked and backward, and foreign countries don't know anything. It has seriously hindered the progress and development of the country. As a result, Perry, an American, blew up the door of Japan with only five ships. The TV series The Legend of the Dragon and Horse is very vivid. Many Japanese people have no idea how big their territory is, have never seen a globe, don't know what other countries in the world are, and have never seen a steam-powered ship. Just like the ignorance of the Qing Dynasty. Third, the most serious thing is that Japan's hierarchy is extremely unequal. Japan divides its citizens into multiple grades, and even samurai are divided into two grades: superior samurai and subordinate samurai. The superior warrior enjoys many privileges, but the junior warrior does not, and the people are even inferior to the junior warrior. Let alone expect to enjoy any privileges. This unequal hierarchy has made many people dare to speak out. However, because the country was closed to the outside world in the past and the economy was good, the people did not rebel. However, after the "Black Ship Incident", western theories were introduced into Japan, which finally awakened many people of insight. Be aware of the level inequality between people. Finally, a peasant uprising led by a samurai with a lower rank, Kojiro Daping, broke out. Although it was suppressed in just one day, it was the first case of Japan saving the country. Later, Sakamoto Ryoma and other patriots actively rushed to save the country, which contributed to the alliance between Samak and Changzhou. It also contributed to the establishment of Fengxin's main mountain in Kochi Fan (the official name of Tosa Fan). Finally, Tokugawa Yoshinobu, the fifth and last generation general of Tokugawa shogunate, was attacked from inside and outside and agreed to return the major policies. The shogunate collapsed in name. Then the next year, the shogunate army and the closing army met in the suburbs of Kyoto, and the birds and feathers fought a decisive battle. After the defeat of the shogunate, Tokugawa Yoshinobu finally gave up power and enjoyed unusual treatment. He lived to be about 77 years old. The so-called internal and external attack means that the people are dissatisfied and Sachang revolts. Outside, refers to foreign forces. The shogunate conquered Changzhou Francisco for the first time. With the support of British, French, American and Dutch navies, the shogunate army marched on land, and the four navies shelled Changzhou Francisco, forcing Changzhou Francisco to yield to the shogunate. However, with the decline of the shogunate, Britain and the United States gradually abandoned the shogunate and planned to foster new agents, so they chose Sa Changfan. In addition, France and Britain and the United States have conflicts of interest, and the shogunate holds the French thigh. So it gradually evolved into a competition of imperialist forces. However, with the fall of the French cabinet, the new cabinet did not support the shogunate. Finally, the shogunate lost the strong support of foreign forces. So this is what internal and external power loss refers to.