In the military, there are certain terms/terminologies used.
So, when two sides of an international conflict possess such enormous arsenals of nuclear missiles that each has the ability to destroy the other in the event of war, it is called:
mutually assured destruction.
Mutually Assured Destruction is abbreviated as "MAD".
Mutually Assured Destruction is known to be a national security policy or a military strategy in which opposing sides possess nuclear weapons that are capable of completely annihilating the attacker and the defender.
Here are some other things to know about Mutually Assured Destruction:
Learn more about Mutually Assured Destruction on https://brainly.com/question/2088581