Answer:
The Monroe Doctrine, in asserting unilateral U.S. protection over the entire Western Hemisphere, was a foreign policy that could not have been sustained militarily in 1823. Monroe and Adams were well aware of the need for the British fleet to deter potential aggressors in Latin America.
im pretty sure the answer is "island hopping" :)
Answer:
Shay's rebellion convinced American leaders that little protected them from anarcy
