Nuclear threats refer to the potential dangers posed by nuclear weapons and materials. These threats can arise from the use of nuclear weapons in conflicts, the risk of nuclear terrorism, or the possibility of accidents at nuclear power plants. Countries with nuclear capabilities, such as the United States and Russia, maintain arsenals that can cause widespread destruction. Additionally, the proliferation of nuclear technology raises concerns about nations like North Korea and Iran developing their own nuclear weapons. International treaties, such as the Non-Proliferation Treaty, aim to prevent the spread of nuclear weapons and promote disarmament, but challenges remain in ensuring global security.