Minimal deterrence
Minimal deterrence involves the ability to response to a nuclear attack with a minimal nuclear counterstrike.
In contrast to mutual assured destruction, the counterstrike would not
have the ability to destroy the attacker, but rather is intended to severely
damage the attacker in order to deter an attack.
It appears to be the nuclear posture that the People's Republic of China maintains toward the United States as well as the nuclear policy of India and Pakistan.