Arms Race: An arms race is a competition between nations to develop superior military capabilities in terms of quantity or quality. During the Cold War, there was an intense nuclear arms race between the United States and Soviet Union.
Deterrence Theory: Deterrence theory suggests that possessing strong military capabilities can discourage potential adversaries from attacking due to the fear of severe consequences.
Mutual Assured Destruction (MAD): MAD is a doctrine in which both sides possess enough nuclear weapons to ensure that if one side launches an attack, the other can retaliate with devastating force, resulting in mutual destruction.