True or False: Concerns about mutually assured destruction/massive retaliation led to a decrease in armaments in the Soviet Union and the United States.

True

Explanation:

After the Soviets successfully tested an atomic bomb in 1949, a nuclear arms race began between the two superpowers of the world, the Soviet Union and the United States. They made so many nuclear weapons that the world could be destroyed many times over if they ever went to nuclear war.

This reality almost came to pass with the Cuban Missile Crisis where the world was too close to nuclear war. After this, both super powers became more concerned about mutually assure destruction if they went to war and made efforts to decrease armaments.

Answer: The missing number is 3.2

Step-by-step explanation:

• let the missing number be x