Guinness says that Operation Overload in World War II was the greatest but each teacher probably has a different answer
It gives congress the power to make laws
D because they want the nation to be safe from foreign attacks.
The case was about turning Native Americans into US citizens. Boarding schools were made where they would figuratively "kill the indian", that is they would make him denounce his cultural heritage, and they would "save the man", meaning they would turn him into a "civilized" US citizen.