What role did nationalism and alliance systems play in the outbreak of the first world war?

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

Roosevelt's “four freedoms” speech relies so heavily on emotional appeal that its structure is missing .

Who were the copperheads? a. a native american tribe that rose up during the war b. northern democrats opposed to the war c. ships that ran the union blockade d. an elite force of union soldiers in the west