- Transporting troops and supplies: Ships were essential for moving large numbers of troops and supplies to the front lines. This was especially important for the Union, which had to transport troops and supplies from the North to the South.
- Blockading ports: The Union Navy blockaded Confederate ports to prevent the South from importing goods and exporting cotton. This was a key strategy in the Union's effort to win the war.
- Attacking coastal cities and forts: The Union Navy also attacked Confederate coastal cities and forts to weaken the South's defenses. This included attacks on New Orleans, Mobile, and Charleston.
- Raiding Confederate shipping: The Union Navy raided Confederate shipping to disrupt the South's economy. This included attacks on Confederate merchant ships and privateers.
- Supporting amphibious operations: Ships were also used to support amphibious operations, such as the landings at Fort Sumter and Normandy.
- Intelligence gathering: Ships were also used to gather intelligence about Confederate movements. This information was essential for the Union's planning efforts.