- the group of 11 Southern states that seceded from the United States in 1860–61.
- the 11 Southern states (Alabama, Arkansas, Florida, Georgia, North Carolina, South Carolina, Texas, Virginia, Tennessee, Louisiana, and Mississippi) that seceded from the Union in 1861, precipitating a civil war with the North. The Confederacy was defeated in 1865 and the South reincorporated into the US