Answer:
The Declaration of Independence included these three major ideas: People have certain Inalienable Rights including Life, Liberty and Pursuit of Happiness. All Men are created equal. Individuals have a civic duty to defend these rights for themselves and others.
Explanation:
General George Marshall is famous for having one of the greatest organizational minds in history.
Prior to World War 2, the United States Military was woefully unprepared, under resourced, and under trained. Marshall led the efforts in World War 2 to make the US Military and effective force.
The southern colonies' economy had growing labor demands
This is because the South's economy relied on the agriculture, which required more physical labor than the industrial factories the North relied on.
The US believed in isolation, if another country attacked the US that is the only way that we would get involved, therefore we tried to stay out of the mass killings and havoc that the Germans and Japanese were creating until we felt that it involved the US. The US did not want to pick a side and have to stay loyal to that side and go to war when that country did because of the alliance. The US finally joined in to help the allied powers to supply them with weapons/military troops. They did not enter the war until December 1941.