Siege artillery in the American Civil War were used by the Federal troops as their trenches approached Fort Wagner and field artillery was placed in the trenches to defend against possible Confederate sorties. While Fort Wagner was subject to near constant bombardment from the batteries listed in the table below, as approaches neared the fort's ditch the bombardment increased. Fire from U.S. Navy ships, particularly the USS "New Ironsides", proved very effective. The navy were able to skip the round shells from their XI-inch Dahlgren guns off the water, over the ramparts, and into the fort. Several heavy Parrott rifles that had been directed against Fort Sumter
Names of the American Civil War American flag". Given that in the free states non-Yankee groups – Germans, Dutch-Americans, New York Irish and southern-leaning settlers in Ohio, Indiana and Illinois – showed majority opposition to waging the Civil War, other Confederate sympathizers have used the name "War of Yankee Aggression" or "Great War of Yankee Aggression" to indicate the Civil War as a Yankee war, not a Northern war "per se". Conversely, the "War of Southern Aggression" has been used by those who maintain that the Confederacy was the belligerent party. They maintain the thought that the Confederacy started the war when they initiated combat at