Answer:
The United States has a complex government system. One important tenet of this system is democracy, in which the ultimate power rests with the people. In the case of the United States, that power is exercised indirectly, through elected representatives. Although the U.S. has been a strong proponent of democracy, it did not invent democracy. The Greeks are often credited with pioneering a democratic government that went on to influence the structure of the United States. Read this article that describes how elements of ancient Greek democracy heavily influenced the figures that designed the United States government.
Hitler invaded poland, and we told him to stop. History tells us he didnt, and most of europe went to war with him. We came into the picture when the japs bombed pearl, and after we declared war on Japan, Hitler declared war on us
Article 1, sec. 8, of the constitution which gives congress the power to make all laws that are necessary & proper for carrying out its duties