Even after a grueling forty-seven-day siege at Vicksburg, Ulysses S. Grant could not rest on his laurels. Just fifty miles away in Jackson, Confederate general Joseph E. Johnston and the "Army of Relief" still posed a threat to Grant's hard-won victory. General William Tecumseh Sherman countered by marching Union troops to Jackson. After a weeklong siege under a hot Mississippi sun, Johnston's army abandoned the city, leaving the fate of Jackson in the hands of Sherman's troops. Historian Jim Woodrick recounts the Civil War devastation and rebirth of Mississippi's capital.