During the Iuka-Corinth Campaign, the 20th Arkansas was assigned to Brigadier General William L. Cabell's brigade of Brigadier General Dabney H. Maury's Division of Major General Sterling Price's Corps within the Confederate (Army of the West). The regiment was at and in the battle of Farmington, Second Corinth, and Coffeeville, Mississippi. During the Battles of Corinth and Hatchie's Bridge 92 casualties were reported. Colonel Johnson was killed at the battle of Corinth, and Lieutenant-Colonel Fletcher became colonel, but resigned on account of disability, when Major Daniel W. Jones was promoted to colonel, and Captain Robertson succeeded him as major of the regiment.