Answer :
Final answer:
The arms race during the Cold War heightened tensions with the threat of mutual nuclear destruction.
Explanation:
The arms race during the Cold War escalated tensions between the United States and the Soviet Union with the threat of mutual nuclear destruction. Both sides stockpiled nuclear weapons, creating a situation of mutual assured destruction and increasing conflict and suspicion.
Learn more about Cold War tensions between the United States and the Soviet Union here:
https://brainly.com/question/9971675