What caused the crisis of the bipolar model of the world? Where do you see its most important manifestations?

One of the first and most important reasons for the crisis of the bipolar model of the world was the rupture of political relations between the Soviet Union and, at that time, the Chinese Communist Party, which decided to build capitalism in its country.

Due to this, the Soviet Union lost one of its key partners, while the United States of America, on the contrary, increased its influence in Asia.

In addition, due to the rapid growth of the economies of Japan, Germany and France, the influence of the United States and the USSR began to gradually fade as these states also began to produce nuclear weapons.