A nuclear threat refers to the potential danger posed by the use or proliferation of nuclear weapons. This can include the risk of a nuclear attack by a state or non-state actor, as well as the possibility of nuclear materials falling into the hands of terrorists. The consequences of such an event could be catastrophic, leading to massive loss of life and long-term environmental damage. International efforts, such as treaties and diplomatic negotiations, aim to reduce nuclear threats by promoting disarmament and preventing the spread of nuclear weapons. Organizations like the International Atomic Energy Agency (IAEA) monitor nuclear activities to ensure compliance with safety and non-proliferation standards.