John Bell Hood was marching through northern Alabama on his way to an invasion of Union-held Tennessee. His army had departed northwest from the vicinity of Atlanta, Georgia, in late September 1864, hoping their destruction of Union supply lines would lure Maj. Gen. William T. Sherman's Union army into battle. Sherman pursued Hood as far as Gaylesville, Alabama, but decided to return his army to Atlanta and instead conduct a March to the Sea through Georgia. He gave responsibility for the defense of Tennessee to Maj. Gen. George H. Thomas at Nashville.
Hood departed from Gadsden, Alabama, on October 22, en route to Guntersville, Alabama, where he planned to cross the Tennessee River. Learning that crossing place was strongly guarded, and concerned that Federal gunboats could destroy any pontoon bridge he might deploy, he impulsively changed his destination to Decatur, 40 miles west.
When Hood arrived at Decatur on October 26, he found a Federal infantry force of 3,000 to 5,000 men defending an entrenched line that included two forts and 1,600 yards of rifle pits. Two Federal gunboats patrolled the river. On October 27, Hood arranged his army as it arrived to encircle Decatur. The next morning, he sent Confederate skirmishers through a dense fog to a ravine within 800 yards of the main fortifications. At about noon, a Federal regiment drove the skirmishers out of the ravine, capturing 125 men. Hood could not afford the casualties from a full-scale assault and decided to cross the Tennessee River elsewhere. He marched further the west and crossed near Tuscumbia, Alabama, where Muscle Shoals prevented interference by the Federal gunboats.
Sword, Wiley. The Confederacy's Last Hurrah: Spring Hill, Franklin, and Nashville. Lawrence: University Press of Kansas, 1993. ISBN 0-7006-0650-5. First published with the title Embrace an Angry Wind in 1992 by HarperCollins.