Confederate Army

The Confederate States of America (CSA or C.S.A.), commonly referred to as the Confederacy, or simply "rebels," was an unrecognized, pre-War, secessionist country existing from 1861-65. It was originally formed by seven states in the Lower South region of the United States whose economy was mostly dependent upon agriculture, particularly cotton, and a plantation system of production that largely relied upon slave labor.

Background
In Point Lookout, various references to the Confederacy and the American Civil War can be found. Confederate hats and rifles are still very common finds and the natural biogas that is released from the ground comes from the thousands of Confederate soldiers, whose bodies were dumped in mass graves during the Civil War.

In the film Last Stand at Fort McGee, the Fightin' Furies have to face the Confederate army.

In Appalachia, due to the former state of West Virginia being created because of their opposition to slavery, unlike the rest of Virginia, they seceded from Virginia and the Confederacy to remain with the USA. As a result of its being a border state, a few battles were fought for control of it, with the Confederacy trying to absorb the state back into Virginia, such as the Battle of Prickett's Fort. West Virginia was granted statehood for the United States but the remains of Confederate items like Confederate uniforms and weapons still exist throughout the post-War Appalachia region.

Appearances
The Confederate States of America are mentioned in Fallout, Fallout 3 and its add-on Point Lookout, the Fallout 4 add-on Far Harbor, and Fallout 76.