The remnants of the broken columns were rallied behind their outer lines, but no effort was made to renew the assault. They had done all that was possible for flesh and blood. The casualties in the assault had been about 1000, whilst within the fortifications only 13 killed and wounded were reported. [Footnote: Official Records, vol. xxxi. pt. i. pp. 277, 278, 344, 461, 487, 490, 519, 520.] Buckner's division had joined Longstreet a day or two before the assault, but took no active part in it. Their absence from Missionary Ridge still further reduced Bragg's army, whilst it did not give to Longstreet any practical benefit. The division of the Confederate forces had thus proved to be a great military mistake. Its only chance had been in a swift attack upon Burnside and a prompt return, and this chance had vanished with the delays in the railroad transportation of Longstreet's men to Sweetwater. Prudence dictated that the expedition should be abandoned on the 13th of November; but the fear of seeming vacillating, a weakness of second-rate minds as great as vacillation itself, had made Bragg order the column forward. Burnside's well-conducted retreat, on the other hand, had lured Longstreet forward, and the patient endurance of a siege had kept the enemy in front of Knoxville, and even led to the further depletion of Bragg by the detachment of Buckner, giving to Grant the very opportunity he desired. The good fortune of the National commander culminated at Missionary Ridge. Soldiers believe in good luck quite as much as in genius, and follow a leader whose star is in the ascendant with a confidence which is the guaranty of victory. Great opportunities, however, come to all. The difference between a great soldier and an inferior one is that the great man uses his opportunities to the full, and so fortune seems to be in league with him. When Grant had driven Bragg back on Dalton, the latter could realize what he had lost by his errors. It was now impossible for Longstreet to rejoin him. It was even doubtful if Wheeler's cavalry could do so. The whole National army was between the widely separated Confederate wings, and nothing was left to Longstreet but a humiliating march back to Lee by way of the upper Holston and the headwaters of the James River. Pride delayed it, and the depth of winter favored the delay; but it was a foregone conclusion from the hour that Wood's and Sheridan's divisions crowned Missionary Ridge.