Battle of Fort Sumter Battle of Fort Sumter The Battle of Fort Sumter (April 12–13, 1861) was the bombardment of Fort Sumter near Charleston, South Carolina by the Confederate States Army, and the return gunfire and subsequent surrender by the United States Army, that started the American Civil War. Following the declaration of secession by South Carolina on December 20, 1860, its authorities demanded that the U.S. Army abandon its facilities in Charleston Harbor. On December 26, Major Robert Anderson of the U.S. Army surreptitiously moved his small command from the vulnerable Fort Moultrie on Sullivan's Island to Fort Sumter, a substantial fortress built
Fort Sumter later issued to all Union service members who had performed duty at Fort Sumter under the command of Major-General Quincy Adams Gillmore. Fort Sumter Armaments, August 17, 1863 After the devastating bombardment, both Major General Quincy A. Gillmore and Rear Admiral John A. Dahlgren, now commanding the South Atlantic Blockading Squadron, determined to launch a boat assault on Fort Sumter for the night of September 8–9, 1863. Cooperation between the Army and Navy was poor. Dahlgren refused to place his sailors and marines under the command of an army officer, so two flotillas set out towards Fort Sumter that night.