Final answer:
The North did not employ the strategy of defending the North during the American Civil War.
Step-by-step explanation:
The correct answer is D. Defend the North. During the American Civil War, the North, also known as the Union, employed several strategies to defeat the Confederacy in the South. These strategies included:
- Defeating Confederate armies in the field, by engaging in battles and attempting to destroy the Confederate military forces. This was a major objective for the Union forces.
- Blockading Southern ports, which was aimed at cutting off the Confederacy's access to trade and supplies.
- Seizing control of the Mississippi Valley, which was important for the Union's military and economic interests. By controlling the Mississippi River, the Union could effectively split the Confederacy in two and cut off its communication and supply lines.
Therefore, defending the North was not a strategy used by the North, as their main goal was to defeat the Confederacy and restore the Union.