Although Thomas's forces were much stronger, he could not ignore Hood's army. Despite the severe beating it had suffered at Franklin, Hood's Army of Tennessee presented a threat by its mere presence and ability to maneuver. Thomas knew he had to attack, but he prepared cautiously. His cavalry corps, commanded by the energetic young Brig. Gen. James H. Wilson, was poorly armed and mounted, and he did not want to proceed to a decisive battle without effective protection of his flanks. This was particularly important, since Wilson would be facing the horsemen of the formidable Forrest. Refitting the Union cavalry took time.