On May 22, the Union Army under Maj. Gen. U. S. Grant, composed of the 13th, 15th, and 17th Corps, attacked the Confederate line of defense held by the army of Lieut. Gen. John C. Pemberton, composed of Stevenson’s, Forney’s, Smith's and Bowen’s Divisions, and Waul's Texas Legion, with Bowen’s Division and the legion engaged in reserve. The armies were positioned much as they had been on May 19, except that Waul's Texas Legion had been placed in rear of the left of Lee's Brigade on the left of Stevenson’s Division. After a heavy cannonade from every gun on the Union line, assaults began at 10 a. m., with the 15th Corps attacking the Stockade Redan on the Graveyard Road, the 17th attacking on the right and left of the Jackson Road, and the 13th attacking the lunette on the Baldwin’s Ferry Road. Attacks also struck the railroad redoubt and the curtain between that redoubt and Fort Garrott, while Hall's Brigade of MacArthur’s Division, 17th Corps, advanced close to the Confederate line on the Warrenton Road but did not assault. At every point assaulted, the colors of the leading regiments were carried close to the Confederate works. A brigade headquarters flag was placed on the parapet of the stockade redan, flags were placed on the parapet of the railroad redoubt, and that work was temporarily occupied, but no permanent lodgment was made anywhere. In the afternoon, the 17th Corps assaulted at the Curtain Ferry Road, at that lunette, at the Jackson Road, and at the curtain north of Glass’ Bayou, while the 15th Corps assaulted at the curtain south of the Graveyard Road, at the stockade redan on that road, and at a point about one-third of a mile west of that redan. The colors of the leading regiments were again carried close to the Confederate line, another flag was placed on the parapet of the stockade redan, but the effort to carry the Confederate line of defense by assault failed at every point. Union casualties were 502 killed, 2550 wounded, and 147 missing, for a total of 3199, including sixty eight officers killed or mortally wounded; Confederate casualties were not fully reported.
