South Carolina was the first state to secede from the Union in December 1860, and was one of the founding member states of the Confederacy in February 1861. The bombardment of the beleaguered U.S. garrison at Fort Sumter in Charleston Harbor on April 12, 1861, is generally recognized as the first military engagement of the war. The retaking of Charleston in February 1865, and raising the flag (the same flag) again at Fort Sumter, was used for the Union symbol of victory.
South Carolina provided around 60,000 troops for the Confederate Army. As the war progressed, former slaves and free blacks of South Carolina joined U.S. Colored Troops regiments for the Union Army (most Blacks in South Carolina were enslaved at the war's outset). The state also provided uniforms, textiles, food, and war material, as well as trained soldiers and leaders from The Citadel and other military schools. In contrast to most other Confederate states, South Carolina had a well-developed rail network linking all of its major cities without a break of gauge.