Gaining control of the mississippi river during the civil war would allow the north to

Split the confederates into smaller parts. Or isolate three of their states.

answer; slavery should be outlawed in the new country, was part of the initial draft of the declaration of independence, but not part of the final

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so.