The manifestations of the Cold War: the establishment of NATO and the Warsaw Pact, the US-Soviet arms race, the construction of the Berlin Wall, the Korean War, the Vietnam War, the Cuban missile crisis, the Soviet invasion of Afghanistan and so on.

Impact:

(1) The Cold War brought long-term confrontation and confrontation between the United States and the Soviet Union and the East and the West, hindered the overall development of the world, and also split Germany, North Korea and other countries and triggered local wars;

(2) Under the cold war environment, the United States and the Soviet Union were evenly matched, and a new world war was avoided for nearly half a century;

(3) Countries with different social systems learn from each other in different degrees in the long-term existence and use them for internal adjustment and reform, thus promoting the overall development of the world;

(4) 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.