Mutually Assured Destruction (MAD): A doctrine of military strategy and national security policy in which a full-scale use of nuclear weapons by two or more opposing sides would result in the complete annihilation of both the attacker and the defender.
Nuclear deterrence: A military strategy that aims to dissuade adversaries from taking action by ensuring that they understand the severe consequences of such actions, particularly through the threat of nuclear retaliation.
Cold War:A period of geopolitical tension between the Soviet Union and the United States, along with their respective allies, characterized by political hostility, military competition, and proxy wars without direct conflict between the superpowers.