Under Gen. Joseph E. Johnston, the Army of Tennessee had retired south of Peachtree Creek, an east to west flowing stream, about three miles north of Atlanta. Sherman split his army into three columns for the assault on Atlanta with George H. Thomas’s Army of the Cumberland moving from the north. Johnston had decided to attack Thomas, but Confederate President Jefferson Davis relieved him of command and appointed John B. Hood to take his place. Hood attacked Thomas after his army crossed Peachtree Creek. The determined assault threatened to overrun the Union troops at various locations. Ultimately, though, the Yankees held, and the Rebels fell back.