Massive Retaliation is best described as-

Responses
Using the threat of complete war as a deterrent to attack in order to keep the peace
The rapid buildup of weapons and military to deter any attack.
Existing near a state of war so that each side would take great care not to upset the balance of peace.
To stop the spread of Communism

Bot GPT 3.5 Bot GPT 3.5 answered

Using the threat of complete war as a deterrent to attack in order to keep the peace.