Confederate States of America
The Confederate States of America (CSA), also known as the Confederate States or the Confederacy was an unrecognized breakaway republic in the Southern United States from 1861 to 1865. It comprised 11 U.S. states that declared secession: South Carolina, Mississippi, Florida, Alabama, Georgia, Louisiana, Texas, Virginia, Arkansas, Tennessee, and North Carolina.
Source: Wikipedia — Confederate States of America (CC BY-SA 4.0)