On the 5th of October the railroad back from Atlanta was again very badly broken, Hood having got on the track with his army. Sherman saw after night, from a high point, the road burning for miles. The defence of the railroad by our troops was very gallant, but they could not hold points between their intrenched positions against Hood's whole army; in fact they made no attempt to do so; but generally the intrenched positions were held, as well as important bridges, and store located at them. Allatoona, for instance, was defended by a small force of men under the command of General Corse, one of the very able and efficient volunteer officers produced by the war. He, with a small force, was cut off from the remainder of the National army and was attacked with great vigor by many times his own number. Sherman from his high position could see the battle raging, with the Confederate troops between him and his subordinate. He sent men, of course, to raise the temporary siege, but the time that would be necessarily consumed in reaching Corse, would be so great that all occupying the intrenchments might be dead. Corse was a man who would never surrender. From a high position some of Sherman's signal corps discovered a signal flag waving from a hole in the block house at Allatoona. It was from Corse. He had been shot through the face, but he signalled to his chief a message which left no doubt of his determination to hold his post at all hazards. It was at this point probably, that Sherman first realized that with the forces at his disposal, the keeping open of his line of communication with the North would be impossible if he expected to retain any force with which to operate offensively beyond Atlanta. He proposed, therefore, to destroy the roads back to Chattanooga, when all ready to move, and leave the latter place garrisoned. Yet, before abandoning the railroad, it was necessary that he should repair damages already done, and hold the road until he could get forward such supplies, ordnance stores and small rations, as he wanted to carry with him on his proposed march, and to return to the north his surplus artillery; his object being to move light and to have no more artillery than could be used to advantage on the field.
Sherman thought Hood would follow him, though he proposed to prepare for the contingency of the latter moving the other way while he was moving south, by making Thomas strong enough to hold Tennessee and Kentucky. I, myself, was thoroughly satisfied that Hood would go north, as he did. On the 2d of November I telegraphed Sherman authorizing him definitely to move according to the plan he had proposed: that is, cutting loose from his base, giving up Atlanta and the railroad back to Chattanooga. To strengthen Thomas he sent Stanley (4th corps) back, and also ordered Schofield, commanding the Army of the Ohio, twelve thousand strong, to report to him. In addition to this, A. J. Smith, who, with two divisions of Sherman's army, was in Missouri aiding Rosecrans in driving the enemy from that State, was under orders to return to Thomas and, under the most unfavorable circumstances, might be expected to arrive there long before Hood could reach Nashville.
In addition to this, the new levies of troops that were being raised in the North-west went to Thomas as rapidly as enrolled and equipped. Thomas, without any of these additions spoken of, had a garrison at Chattanooga which had been strengthened by one division and garrisons at Bridgeport, Stevenson, Decatur, Murfreesboro, and Florence. There were already with him in Nashville ten thousand soldiers in round numbers, and many thousands of employees in the quartermaster's and other departments who could be put in the intrenchments in front of Nashville, for its defence. Also, Wilson was there with ten thousand dismounted cavalrymen, who were being equipped for the field. Thomas had at this time about forty-five thousand men without any of the reinforcements here above enumerated. These reinforcements gave him altogether about seventy thousand men, without counting what might be added by the new levies already spoken of.
About this time Beauregard arrived upon the field, not to supersede Hood in command, but to take general charge over the entire district in which Hood and Sherman were, or might be, operating. He made the most frantic appeals to the citizens for assistance to be rendered in every way: by sending reinforcements, by destroying supplies on the line of march of the invaders, by destroying the bridges over which they would have to cross, and by, in every way, obstructing the roads to their front. But it was hard to convince the people of the propriety of destroying supplies which were so much needed by themselves, and each one hoped that his own possessions might escape.
Hood soon started north, and went into camp near Decatur, Alabama, where he remained until the 29th of October, but without making an attack on the garrison of that place.
The Tennessee River was patrolled by gunboats, from Muscle Shoals east; and, also, below the second shoals out to the Ohio River. These, with the troops that might be concentrated from the garrisons along the river at any point where Hood might choose to attempt to cross, made it impossible for him to cross the Tennessee at any place where it was navigable. But Muscle Shoals is not navigable, and below them again is another shoal which also obstructs navigation. Hood therefore moved down to a point nearly opposite Florence, Alabama, crossed over and remained there for some time, collecting supplies of food, forage and ammunition. All of these had to come from a considerable distance south, because the region in which he was then situated was mountainous, with small valleys which produced but little, and what they had produced had long since been exhausted. On the 1st of November I suggested to Sherman, and also asked his views thereon, the propriety of destroying Hood before he started on his campaign.
On the 2d of November, as stated, I approved definitely his making his proposed campaign through Georgia, leaving Hood behind to the tender mercy of Thomas and the troops in his command. Sherman fixed the 10th of November as the day of starting.
Sherman started on that day to get back to Atlanta, and on the 15th the real march to the sea commenced. The right wing, under Howard, and the cavalry went to Jonesboro, Milledgeville, then the capital of Georgia, being Sherman's objective or stopping place on the way to Savannah. The left wing moved to Stone Mountain, along roads much farther east than those taken by the right wing. Slocum was in command, and threatened Augusta as the point to which he was moving, but he was to turn off and meet the right wing at Milledgeville.
Atlanta was destroyed so far as to render it worthless for military purposes before starting, Sherman himself remaining over a day to superintend the work, and see that it was well done. Sherman's orders for this campaign were perfect. Before starting, he had sent back all sick, disabled and weak men, retaining nothing but the hardy, well-inured soldiers to accompany him on his long march in prospect. His artillery was reduced to sixty-five guns. The ammunition carried with them was two hundred rounds for musket and gun. Small rations were taken in a small wagon train, which was loaded to its capacity for rapid movement. The army was expected to live on the country, and to always keep the wagons full of forage and provisions against a possible delay of a few days.
The troops, both of the right and left wings, made most of their advance along the line of railroads, which they destroyed. The method adopted to perform this work, was to burn and destroy all the bridges and culverts, and for a long distance, at places, to tear up the track and bend the rails. Soldiers to do this rapidly would form a line along one side of the road with crowbars and poles, place these under the rails and, hoisting all at once, turn over many rods of road at one time. The ties would then be placed in piles, and the rails, as they were loosened, would be carried and put across these log heaps. When a sufficient number of rails were placed upon a pile of ties it would be set on fire. This would heat the rails very much more in the middle, that being over the main part of the fire, than at the ends, so that they would naturally bend of their own weight; but the soldiers, to increase the damage, would take tongs and, one or two men at each end of the rail, carry it with force against the nearest tree and twist it around, thus leaving rails forming bands to ornament the forest trees of Georgia. All this work was going on at the same time, there being a sufficient number of men detailed for that purpose. Some piled the logs and built the fire; some put the rails upon the fire; while others would bend those that were sufficiently heated: so that, by the time the last bit of road was torn up, that it was designed to destroy at a certain place, the rails previously taken up were already destroyed.