Mutual 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 cause the complete annihilation of both the attacker and the defender.
Nuclear Proliferation:The spread of nuclear weapons, nuclear weapons technology, and nuclear information to nations not recognized as nuclear weapon states by the Nuclear Non-Proliferation Treaty (NPT).
Strategic Arms Reduction Treaty (START): A series of treaties between the United States and the Soviet Union (later Russia) to reduce and limit the number of strategic offensive arms, such as intercontinental ballistic missiles, submarine-launched ballistic missiles, and heavy bombers.