Answer:
The Barbarian attacks on Rome led to the fall of the Roman Empire, since the empire was weak at that time. The lesson here is that always be prepared. if they were prepared the Roman Empire might have been safe.
Explanation:
WWII revitalized the dark battle for correspondence. Each patron required the privilege to vote in the South, the destroying of isolation, and access to the "American way of life." Black individuals needed to be considered nationals of the US with their four flexibilities as FDR notices. Needed vote based system at home, needed to win the war however win peace.
The outcome of the war left many people unhappy and the three most important dictators that arose were Mussolini, Hitler and Stalin. The Treaty of Versailles strongly punished the Germans which left them angry, and it was that anger that Hitler used to rise to power. On the other hand the US was not part of the League of Nations, thus they were relatively weak and could not enforce the law on the scale it should have.