How did the introduction of nuclear weapons change the relationship between the United States and the soviet union?

By the United States deciding not to share the nuclear weapons with the USSR, when they finally came up with their own nuclear weapons, it was then known as a nuclear "arms race".

Explanation:

the exodus of these people from constantinople contributed to the revival of greek and roman studies, which led to the development of the renaissance in humanism and science. byzantine emigrants also brought to western europe the better preserved and accumulated knowledge of their own greek civilization