They faced Confronting_problem secessionists of the Confederate States in the South , who advocated Convincing for states ' rights in order to uphold Defending slavery .

The Confederacy grew Cause_to_make_progress to control Control at least a majority of territory in eleven states , and it claimed Statement the additional states of Kentucky and Missouri by assertions from native secessionists fleeing Escaping Union authority , but without territory or population therein ; these states were given Giving full representation in the Confederate Congress throughout the Civil War Military_operation .