PLEASE ANSWER WILL GIVE BRAINIEST Based on what you explored, what did the United States need to work on ('reconstruct') when the war ended? Answer
I

If I'm correct,

Explanation:

the effort to reintegrate Southern states from the Confederacy and 4 million newly-freed slaves into the United States.

- "the four new england colonies of colonial america included colonies of new hampshire, massachusetts bay colony, rhode island and connecticut."

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in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation: