The correct answer is siege.
Gaining control of Vicksburg was essential to the Union's military strategy. Taking control of Vicksburg would allow the Union army to control the Mississippi River. The Mississippi River was the lifeline for the Confederacy, as this waterway allowed them to easily send goods and troops to different parts of the US. Controlling the river would help the Union to stop the Confederacy from being able to transport goods. Along with this, it would also cut off Confederate states (like Texas) from other Confederate states located along the Atlantic Ocean.
The answer to the question is true
Some African American leaders responded to segregation by <span>educating themselves and writing pamphlets.
</span>
Served as division commander in Battle of Antietam and Independent Command over Army of Tennessee