The nuclear arms race was a response to problems that people saw as threats to their country's safety. It was like a big competition between countries to see who could have the most powerful weapons. This made people worried that one country would use its nuclear weapons against another, which could lead to a disastrous war. Countries tried to outdo each other by building more and more powerful weapons, which only made the situation worse. Eventually, countries realized that the nuclear arms race was just making things more dangerous, and they started to work together to reduce the number of nuclear weapons in the world.
