Why was the union victory at vicksburg important

Union armies had gained two important victories at about the same time. ... The day after the battle of Gettysburg, Union forces defeated Confederate forces at Vicksburg, Mississippi. This victory gave them control of the Mississippi River. And it split the states of the Confederacy.

Explanation:

A victory at the siege of Vicksburg, Mississippi, in 1863 gave the Union control of the Mississippi River in the American Civil War. ... By having control of the river, Union forces would split the Confederacy in two and control an important route to move men and supplies.

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