<P> Confederate supporters in the trans - Mississippi west also claimed portions of United States Indian Territory after the United States evacuated the federal forts and installations . Over half of the American Indian troops participating in the Civil War from the Indian Territory supported the Confederacy; troops and one general were enlisted from each tribe . On July 12, 1861, the Confederate government signed a treaty with both the Choctaw and Chickasaw Indian nations . After several battles Union armies took control of the territory . </P> <P> Indian Territory was never formally ceded into the Confederacy by American Indian councils, but like Missouri and Kentucky, the Five Civilized Nations received representation in the Confederate Congress and their citizens were integrated into regular Confederate Army units . After 1863 the tribal governments sent representatives to the Confederate Congress: Elias Cornelius Boudinot representing the Cherokee and Samuel Benton Callahan representing the Seminole and Creek people . The Cherokee Nation, aligning with the Confederacy, alleged northern violations of the Constitution, waging war against slavery commercial and political interests, abolishing slavery in the Indian Territory, and that the North intended to seize additional Indian lands . </P> <P> Montgomery, Alabama served as the capital of the Confederate States of America from February 4 until May 29, 1861, in the Alabama State Capitol . Six states created the Confederate States of America there on February 8, 1861 . The Texas delegation was seated at the time, so it is counted in the "original seven" states of the Confederacy; it had no roll call vote until after its referendum made secession "operative". Two sessions of the Provisional Congress were held in Montgomery, adjourning May 21 . The Permanent Constitution was adopted there on March 12, 1861 . </P> <P> The permanent capital provided for in the Confederate Constitution called for a state cession of a ten - miles square (100 square mile) district to the central government . Atlanta, which had not yet supplanted Milledgeville, Georgia as its state capital, put in a bid noting its central location and rail connections, as did Opelika, Alabama, noting its strategically interior situation, rail connections and nearby deposits of coal and iron . </P>

Where was the first capital of the confederacy located