The February 2014 issue of the United Daughters of the Confederacy has article, "The Final Fracture, The Cherokee Nation During the War Between the State". It talks about the different tribes that joined the Confederacy, with emphasis on the Cherokees. There was a split in Cherokee Nation, but more joined the Confederacy. The article states there were about 5000 Cherokees of which 3500 joined the Confederacy. The article goes on to state: "Because the majority of the Cherokees fought for the Confederacy, their treaties with the U.S. Government were broken, and the Cherokee people never regained the unity or the prosperity they enjoyed before the war. The fracture within the Cherokee Nation never healed, and these two tribes of the Cherokees operate independently to this day."
From "UDC Magazine", February, 2014, "The Final Fracture", by Donna Bailey, pages 30-32.