How did alexander gain control of all of greece?

What was the turning point for the soviets allowing them to regain power and turn back the germans?

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

Aclaim about history is most likely not valid if it has which of these characteristics?