The correct answer is <span>the collective action principle
This principle revolves around the idea that a group of people should work together in ensuring the well-being of everyone. If they had left it to states, numerous states probably wouldn't bother with such things because of various reasons, either financial or lack of care for people with disabilities. Because of the collective action principle, they now had to help everyone.</span>
The night-long bombardment of Fort McHenry by British ships inspired the "Star-Spangled Banner" since its author and composer was so impressed with the fact that the American flag was still flying.
The Barbarian attacks on Rome partially stemmed from a mass migration causedby the Huns' invasion of Europe in the late fourth century. When these Eurasian warriors rampaged through northern Europe, they drove many Germanic tribes to the borders of the Roman Empire.
By justin bedell on prezi
