On the 11th of July General Halleck received telegraphic orders appointing him to the command of all the armies, with headquarters in Washington. His instructions pressed him to proceed to his new field of duty with as little delay as was consistent with the safety and interests of his previous command. I was next in rank, and he telegraphed me the same day to report at department headquarters at Corinth. I was not informed by the dispatch that my chief had been ordered to a different field and did not know whether to move my headquarters or not. I telegraphed asking if I was to take my staff with me, and received word in reply: "This place will be your headquarters. You can judge for yourself." I left Memphis for my new field without delay, and reached Corinth on the 15th of the month. General Halleck remained until the 17th of July; but he was very uncommunicative, and gave me no information as to what I had been called to Corinth for.
When General Halleck left to assume the duties of general-in-chief I remained in command of the district of West Tennessee. Practically I became a department commander, because no one was assigned to that position over me and I made my reports direct to the general-in-chief; but I was not assigned to the position of department commander until the 25th of October. General Halleck while commanding the Department of the Mississippi had had control as far east as a line drawn from Chattanooga north. My district only embraced West Tennessee and Kentucky west of the Cumberland River. Buell, with the Army of the Ohio, had, as previously stated, been ordered east towards Chattanooga, with instructions to repair the Memphis and Charleston railroad as he advanced. Troops had been sent north by Halleck along the line of the Mobile and Ohio railroad to put it in repair as far as Columbus. Other troops were stationed on the railroad from Jackson, Tennessee, to Grand Junction, and still others on the road west to Memphis.
The remainder of the magnificent army of 120,000 men which entered Corinth on the 30th of May had now become so scattered that I was put entirely on the defensive in a territory whose population was hostile to the Union. One of the first things I had to do was to construct fortifications at Corinth better suited to the garrison that could be spared to man them. The structures that had been built during the months of May and June were left as monuments to the skill of the engineer, and others were constructed in a few days, plainer in design but suited to the command available to defend them.
I disposed the troops belonging to the district in conformity with the situation as rapidly as possible. The forces at Donelson, Clarksville and Nashville, with those at Corinth and along the railroad eastward, I regarded as sufficient for protection against any attack from the west. The Mobile and Ohio railroad was guarded from Rienzi, south of Corinth, to Columbus; and the Mississippi Central railroad from Jackson, Tennessee, to Bolivar. Grand Junction and La Grange on the Memphis railroad were abandoned.
South of the Army of the Tennessee, and confronting it, was Van Dorn, with a sufficient force to organize a movable army of thirty-five to forty thousand men, after being reinforced by Price from Missouri. This movable force could be thrown against either Corinth, Bolivar or Memphis; and the best that could be done in such event would be to weaken the points not threatened in order to reinforce the one that was. Nothing could be gained on the National side by attacking elsewhere, because the territory already occupied was as much as the force present could guard. The most anxious period of the war, to me, was during the time the Army of the Tennessee was guarding the territory acquired by the fall of Corinth and Memphis and before I was sufficiently reinforced to take the offensive. The enemy also had cavalry operating in our rear, making it necessary to guard every point of the railroad back to Columbus, on the security of which we were dependent for all our supplies.
Headquarters were connected by telegraph with all points of the command except Memphis and the Mississippi below Columbus. With these points communication was had by the railroad to Columbus, then down the river by boat. To reinforce Memphis would take three or four days, and to get an order there for troops to move elsewhere would have taken at least two days. Memphis therefore was practically isolated from the balance of the command. But it was in Sherman's hands. Then too the troops were well intrenched and the gunboats made a valuable auxiliary.
During the two months after the departure of General Halleck there was much fighting between small bodies of the contending armies, but these encounters were dwarfed by the magnitude of the main battles so as to be now almost forgotten except by those engaged in them. Some of them, however, estimated by the losses on both sides in killed and wounded, were equal in hard fighting to most of the battles of the Mexican war which attracted so much of the attention of the public when they occurred. About the 23d of July Colonel Ross, commanding at Bolivar, was threatened by a large force of the enemy so that he had to be reinforced from Jackson and Corinth. On the 27th there was skirmishing on the Hatchie River, eight miles from Bolivar.
On the 30th I learned from Colonel P. H. Sheridan, who had been far to the south, that Bragg in person was at Rome, Georgia, with his troops moving by rail (by way of Mobile) to Chattanooga and his wagon train marching overland to join him at Rome. Price was at this time at Holly Springs, Mississippi, with a large force, and occupied Grand Junction as an outpost. I proposed to the general-in-chief to be permitted to drive him away, but was informed that, while I had to judge for myself, the best use to make of my troops WAS NOT TO SCATTER THEM, but hold them ready to reinforce Buell.
