The US and USSR engaged in nuclear arms race because each country was afraid of the other gaining nuclear supremacy.
Answer:
the second one
Explanation:
this paragraph is simply saying that he was a very important historical figure
A is the correct I hoped that helped
Search-and-destroy missions in Vietnam were largely unsuccessful. This is because new and larger reinforcements of Viet-Kongs moved in as soon as American forces departed. As such, these missions did not stem the flow of refugees.