Manifestations: Truman Doctrine, the establishment of NATO, the US-Soviet arms race, the Cuban missile crisis, and the establishment of the Berlin Wall.
1. Under the background of the Cold War, the United States and the Soviet Union were evenly matched, and a new world war was avoided for nearly half a century.
2. In the long-term coexistence, countries with different social systems learn from each other to varying degrees and use them for internal adjustment and reform, thus promoting the overall development of the world.
3. In the face of bipolar confrontation, developing countries in Asia, Africa and Latin America formed a non-aligned movement, gradually developed and expanded, and the third world rose. The reason for the US-Soviet hegemony: It is similar to the background of the Cold War, except for the sentence that the Cold War kicked off: 65438+the mid-1950s to the early 1960s was the first stage of the US-Soviet hegemony. This period is characterized by both relaxation and tension, and the advantage lies in the United States. 2. From the mid-1960s to the end of 1970s, it was the second stage of US-Soviet hegemony. Its characteristic is that the Soviet Union is on the offensive and the United States is on the defensive. 3. The late 1980s and early 1990s were the third stage of the US-Soviet hegemony. It is characterized by the toughness of the United States and the overall contraction of the Soviet Union.
Impact:
1, two big countries compete and the world situation is tense for a long time;
2. The two great powers are evenly matched, thus avoiding the occurrence of a world war;
3. Threatening world peace is the root of long-term world turmoil.