One of the reasons why there was a need for reform in the US during the mid-1800s is because the US was expanding economically at a rapid pace, as well as expanding to the west, and there was practically no government oversight of growth--which led to people and firms being taken advantage of.
He was the commander of the American Expeditionary Forces of
the US forces during world war one.
He was the only American in his lifetime to reach the rank
of the General of the Armies which is the highest possible rank in the Army of
United States.
He also served in several Indian campaigns in New Mexico and
he was also known to be Black Jack because he also served the 10th cavalry regiment which is a segregated African
American unit in the army.
True. This is shown by the Soviet Union shipping supplies to cuba.
The answer is B. In a federalist system of government, like in the US, the powers are divided between the national and state governments, meaning this that each state has authonomy in certain degree to implement and manage their own laws, as long as this does not affect or contradict the Constitution. This system of government was implemented in the XVIII century as a way to ensure the individual liberties of americans.