On the 20th, Hood led Longstreet's assault that exploited a gap in the Federal line, which led to the defeat of Maj. Gen. William Rosecrans's Union Army of the Cumberland. However, Hood was once again wounded severely; his right femur was fractured and his leg was amputated four inches (100 mm) below the hip. Hood's condition was so grave that the surgeon sent the severed leg along with him in the ambulance, assuming that they would be buried together. Hood was taken to the home of Colonel Francis Little to recover for several weeks before going to Richmond to continue his recovery. Because of Hood's bravery at Chickamauga, Longstreet recommended that he be promoted to lieutenant general as of that date, September 20, 1863; the confirmation by the Confederate Senate occurred on February 11, 1864, as Hood was preparing to return to duty.