The words, "arms race, blockade, align and defect" and their best descriptions are:
The arms race refers to a competition where nations compete to make more weapons and this happened between the Soviet Union and the U.S.A
A blockade involves closing off a nation from the rest of the world and the U.S. did this to Cuba. Aligning yourself with another nation means that you support their ideology.
There were also people who defected during the Cold War and switched their allegiance and loyalty from one nation to another.
Find out more on the Arms Race at https://brainly.com/question/3413076.