Original sentence: (Missouri and Kentucky never officially declared a secession, but rival factions from those states were accepted as members of the Confederacy.The Confederate States of America (CSA, also known as the Confederacy) was the federation initially formed in 1861 by seven slave states that declared their secession from the United States
Edited sentence: (Missouri and Kentucky were both member states of the Confederacy, but rival governments from those states did not recognize the secession and maintanied concurrent membership in the original Union.The Confederate States of America (CSA, also known as the Confederacy) was the federation formed in 1861 by 7 slave states that seceded from the United States