On the other hand the seizure of Chattanooga by a Federal force of consequence, would have closed and barred the gate to all further advances of the Confederates into Tennessee and Kentucky. It would have made the southern boundary of Tennessee permanently the most northerly military line of division between North and South, making of Kentucky a state completely saved to the Union and of Tennessee a state completely recovered to it.
General Halleck had sagacity enough to see, at least in some degree, the strategic necessity of seizing upon Chattanooga. Accordingly he ordered Buell to march upon and occupy that place. But he seems to have forgotten that there were energetic men in command of Southern armies, men quite as capable as he was of recognizing an opportunity. Instead of sending Buell post haste to occupy the place, as General Grant has pointed out that he should have done, leaving the repair of the Memphis and Charleston railroad to details of troops to be made after the main point was gained, he threw away the advantage of a seventeen days' start and a shorter line than that of his enemy, and kept Buell for many weary weeks repairing bridges and culverts while Bragg was hurrying with all possible speed to throw a commanding force into Chattanooga.
The result was that Bragg captured the commanding strategic position and Buell was left "in the air," as military men say, not knowing where to concentrate or in what direction his enemy was to be expected. The story of his haltings, his hesitations, his confusion of mind, his orders and counter orders, as given in General Van Horne's "History of the Army of the Cumberland," and in the accompanying documents, is pitiful in its revelation of the perplexities of an earnest, sincere and very capable officer who had been made the victim of "orders" from an incapable but relentlessly exacting "superior."
It would be an idle and wearisome waste of space to recount here all of Buell's marchings and counter-marchings, all the orders given and countermanded, and given again only to be again rescinded, which marked the progress of that campaign. For the purposes of history it is enough to say that Bragg, with his Confederates, in the end succeeded in maneuvering Buell out of Tennessee and across Kentucky to the neighborhood of Louisville, while sending a dangerously strong detachment into eastern Kentucky to threaten Covington and Cincinnati. The purpose of this detachment was to compel Buell to divide his force and send a part of it up the river to defend Cincinnati, thus weakening the defense of Louisville, which city Bragg intended to assail and confidently hoped to capture.
That purpose failed. The moment that Cincinnati was threatened, men in multitudes, who had not before thought of enlisting, swarmed to the point of danger and freely offered themselves for its defense. It was not necessary for Buell to spare a single regiment for Cincinnati's protection, beyond those already holding eastern Kentucky, and even these, when Bragg's campaign developed its purpose against Louisville, were able to spare considerable detachments to aid Buell in Louisville's defense. But all this is an anticipation of events. Let us tell the story as it occurred.
During the spring and summer of 1862, and after Buell's main army had marched westward to reinforce Grant at Pittsburg Landing, there had been almost ceaseless campaigning and fighting along the upper Tennessee river, in Alabama, and around Cumberland Gap. Generals O. M. Mitchell, G. W. Morgan and Negley were the active agents in this campaigning on the Federal side; Kirby Smith was the Confederate chieftain with John Morgan and N. B. Forrest for his enterprising cavalry raiders. The fighting was often severe and the maneuvers brilliant on both sides, but in the absence of strong armies it was after all scarcely more than skirmishing, involving no battle of importance and no movement of strategic consequence enough to require mention in a general history of the war. The struggle was the outcome of a purpose on either side to maintain the strategic status quo, or if possible to improve it here and there where opportunity offered. Substantially the result was to leave matters about as they had been, except that the continual activity and the frequent encounters of arms served to discipline and steady the raw recruits who were coming in on both sides. The operations of that spring and summer served to make soldiers of the new men North and South.
It was not until after Halleck sent Buell to seize upon the strategic position at Chattanooga, and Bragg, seventeen days later, withdrew his main body from Grant's front and set out by the roundabout way of Mobile to anticipate Buell, that the war in that part of the country again assumed strategic and historical importance.
Buell's march eastward was necessarily very slow and halting, and during its continuance he was compelled to scatter his forces in a very dangerous fashion. There had been two blunders made at the outset—both of them made by General Halleck against General Buell's protest. One of them was in making Corinth the base of supplies for Buell's army and depending for communication upon a long east and west line of badly broken railroad which was exposed at almost every point to frequent and destructive incursions of the enemy. Buell had asked to make Nashville his base instead. That point was connected with Louisville by rail and still more securely by river, and the river route was at all points adequately guarded against interruption by an effective gunboat fleet. From Nashville south and east there were railroads which Buell could have guarded effectually with one fifth the force necessary to the very ineffectual protection of the east and west line of the Memphis and Charleston road.
But Halleck was imperative in his orders and Buell had to submit, with the ultimate result of having to scatter his forces widely in order to guard both lines and repair both, on pain of bringing actual starvation upon his army.
The second mistake was in ordering Buell to repair the very badly damaged Memphis and Charleston railroad as he advanced. This, as we have already seen, resulted in so delaying his advance that Bragg reached Chattanooga first and was from that hour master of the situation.