What were the factors that led to the outbreak of the cold war between the us and the soviet union?

In shifting to a defense policy based upon the concept of "flexible response," president kennedy was indicating that he had grave doubts about thevalue of which previous defense policy? a massive retaliationb collective securityc containmentd air power

Why did some states believe they had the power to overturn federal laws?

Which political organization lobbied government officials to control the immigrant population