 Attacks by Maj. Gen. Horatio Wright on the western edge of the Mule Shoe, which became known as the "Bloody Angle", involved almost 24 hours of desperate hand-to-hand fighting, some of the most intense of the Civil War.Supporting attacks by Warren and by Maj. Gen. Ambrose Burnside were unsuccessful.Grant repositioned his lines in another attempt to engage Lee under more favorable conditions and launched a final attack by Hancock on May 18, which made no progress.