The southern succession was the underlying fear because southern states said they would succeed from the union of Freemon became president
They hoped the use of force would keep workers from joining unions in the future.
Thus the answer is D
The key ideas of "The Prince" were about power and how leaders specifically princes could seek to gain power and also how they could go about maintaining power. These ideas helped to influence European rulers and individuals around the world by promoting this particular type of leadership and power seeking.
Land, labor and capital and entrepreneurship.
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Criticism and disobedience--MacArthur actively ignored Truman and was known to criticize his ability as "Commander and Chief".
Truman wanted a careful war in Korea not wanting to provoke China or the USSR. Aggressive moves by MacArthur will eventually bring China into the Korean War. Truman will fire MacArthur for not following orders. MacArthur supported the use of atomic bombs against China and wanted to use the full power of the US arsenal.