When the
American Civil War began, Roddey, who had not supported secession, sought to remain out of it. After the fall of
Fort Henry, Tennessee, to
Ulysses S. Grant in February 1862, however, Union gunboats were able to sail as far as
Florence, Alabama, where the shallows at
Muscle Shoals stopped them. Rather than allow his steamboat to be seized and used by the enemy, Roddey burned her. He then raised a
cavalry company, which he led at the
Battle of Shiloh in April 1862. Roddey was active with his company during the advance on
Corinth, Mississippi, General
Braxton Bragg writing on May 4, 1862, that "Roddey is invaluable". On August 21, 1862, Bragg – now in
Chattanooga – wrote, ""A portion of our cavalry, consisting of the companies of Captains Earle, Lewis, and Roddey, led by Captain Roddey, has made another brilliant dash upon a superior force of the enemy, resulting in the capture of 123 prisoners." In October 1862, Roddey accordingly was authorized to increase his command to a regiment, the 4th Alabama Cavalry. Roddey was now a
colonel. Roddey's regiment would serve under both
Nathan Bedford Forrest and
Joseph Wheeler, principally in
Tennessee and Alabama. In December 1862, the 5th Alabama Cavalry Regiment was brigaded with Roddey's 4th Alabama Regiment, and Roddey was named the commander of the District of Northern Alabama. Later, the 10th Alabama Cavalry Regiment added to his command, as was a Georgia horse artillery battery. Promoted to brigadier general, Roddey led his cavalry brigade thereafter mainly in support of Forrest. Roddey's men were armed with rifle-muskets rather than
carbines, and as such are often regarded to as mounted infantry rather than true cavalry; they generally fought dismounted. Much of the time they were stationed in their own home area, and Roddey is thus called the "Defender of North Alabama". Roddey fought a delaying action against
Grenville Dodge during
Abel D. Streight's 1863 raid across Alabama and Georgia. In April 1864, Roddey's brigade was transferred to the Department of Alabama, Mississippi, and East Louisiana., and remained in Alabama during
John Bell Hood's 1864
Nashville campaign. After Hood's failure, Roddey joined Forrest in trying desperately to stop Union General
James H. Wilson's cavalry raid into south Alabama in March 1865. Roddey's command fought for the last time in April at the
Battle of Selma, where Forrest's men were overpowered by the more numerous and better armed Union horse soldiers. Most of Roddey command was captured at Selma. The remainder surrendered at Pond Springs (now Wheeler), Alabama, in May 1865. ==Post-war==