The Confederacy primarily relied on Siege tactics at Fort Sumter.

During the Battle of Fort Sumter, which commenced on April 12, 1861, the Confederacy primarily utilized siege tactics. Under the leadership of Brigadier General P.G.T. Beauregard, Confederate forces encircled the fort and subjected it to a heavy artillery bombardment. This strategy was designed to sever the supply lines and reinforcements for the Union troops commanded by Major Robert Anderson, effectively isolating them. The intense shelling persisted for 34 hours, demonstrating the effectiveness of siege warfare in fulfilling their goals. Ultimately, these tactics not only led to the capture of Fort Sumter but also laid the groundwork for future military confrontations in the Civil War.