What was the main reason that the Monroe Doctrine was not enforced until after the Civil War?
A. Americans were too preoccupied with rebuilding the nation after the Civil War.
B. The United States did not have a strong navy to protect its interests in Latin America.
C. Americans considered Latin America uncivilized and unimportant.
D. Americans were afraid to get involved because they feared another war.
The main reason that the Monroe Doctrine was not enforced until after the Civil War was that "D. Americans were afraid to get involved because they feared another war," since many Americans during this time were very isolationist.
