After World War II, the Soviet Union and the United States had a cold war for thirty or forty years. The so-called cold war is a serious political confrontation and military confrontation between the two countries, which is manifested in the arms race and local war, the infiltration, subversion and destruction of ideology, and the competition between people's livelihood and democracy, which is to see whose system is better. In the early 1950s, the Soviet Union was dominant, and the Korean War and China jointly defeated the United States. And the * * * productism was imported into the United States, and the United States had to use McCarthyism for a big purge. At the same time, the Soviet Union successfully tested the atomic bomb and took the lead in launching satellites and spaceships into the sky. In the 1960s, the Soviet Union offended China, and the split between China and the Soviet Union affected the cold war pattern and power contrast between the two camps. In the 1970s and 1980s, the Soviet Union concentrated its national strength on an arms race with the United States, occupying a certain advantage, but the resulting economic burden began to affect the living standards of the Soviet people. It can be said that the failure of the cold war between the Soviet Union and the United States is not the failure of the arms race. The Soviet Union's arm strength and pectoralis major muscles are absolutely not inferior to those of the United States. It was the soft belly that made the United States cut open, that is, it was defeated in internal affairs and soft power, and it was brought down by its own people.