American exceptionalism can best be defined as the belief that

American exceptionalism can best be defined as the belief that. -the United States could acquire territory by force because US troops were exceptional.

Explanation:

the United States could acquire territory by force because US troops were exceptional

Explanation:

a phrase from a poem by ralph waldo emerson about the battle of lexington and concord. emerson's words read, “here once the embattled farmers stood / and fired the shot heard round the world.”