 During the Civil War, Porter served in the First Confederate Creek Regiment.He had enlisted as a Private under the command of Col. D. N. McIntosh (son of chief William McIntosh, who had been prominent prior to removal and was executed for ceding communal lands).Porter participated in several battles, including Round Mountain, Chusto-Talasah (Bird Creek), Chustenahlah, Pea Ridge and Honey Springs.