Answer:
an period of high-stakes tension between russia and us
Step-by-step explanation:
*** nuclear arms race--> they both attempted to gather as many nuclear weapons as possible to act like a threat to the other
the cw was a period of geopolitical tension between the su and the us and their respective allies, the 'Eastern Bloc and the Western Bloc', after WW II.
--> the period is generally considered to span the 1947 Truman Doctrine to the 1991 dissolution of the su.