Final answer:
The goal of the Northern military plan was to defeat the Confederate forces and end the secessionist movement.
Step-by-step explanation:
The goal of the Northern military plan during the American Civil War was to defeat the Confederate forces and bring an end to the secessionist movement. It included strategies such as blockading Southern ports to weaken their economy, gaining control of the Mississippi River to split the Confederacy in two, and capturing the Confederate capital of Richmond, Virginia. These objectives aimed to undermine the Confederacy's ability to wage war and ultimately lead to its surrender.
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