Which of the following military strategies allowed the Union to gain control of Vicksburg?

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.

i believe that the correct answer is a canadian hero.

explanation: he is celebrated as a national hero in canada for successfully thwarting a united states takeover of canada during the war of 1812.