Forrest had about 4,000 cavalry with him, composed of thoroughly well-disciplined men, who under so able a leader were very effective. Smith's command was nearly double that of Forrest, but not equal, man to man, for the lack of a successful experience such as Forrest's men had had. The fact is, troops who have fought a few battles and won, and followed up their victories, improve upon what they were before to an extent that can hardly be counted by percentage. The difference in result is often decisive victory instead of inglorious defeat. This same difference, too, is often due to the way troops are officered, and for the particular kind of warfare which Forrest had carried on neither army could present a more effective officer than he was.
Sherman got off on the 3d of February and moved out on his expedition, meeting with no opposition whatever until he crossed the Big Black, and with no great deal of opposition after that until he reached Jackson, Mississippi. This latter place he reached on the 6th or 7th, Brandon on the 8th, and Morton on the 9th. Up to this time he moved in two columns to enable him to get a good supply of forage, etc., and expedite the march. Here, however, there were indications of the concentration of Confederate infantry, and he was obliged to keep his army close together. He had no serious engagement; but he met some of the enemy who destroyed a few of his wagons about Decatur, Mississippi, where, by the way, Sherman himself came near being picked up.
He entered Meridian on the 14th of the month, the enemy having retreated toward Demopolis, Alabama. He spent several days in Meridian in thoroughly destroying the railroad to the north and south, and also for the purpose of hearing from Sooy Smith, who he supposed had met Forrest before this time and he hoped had gained a decisive victory because of a superiority of numbers. Hearing nothing of him, however, he started on his return trip to Vicksburg. There he learned that Smith, while waiting for a few of his men who had been ice-bound in the Ohio River, instead of getting off on the 1st as expected, had not left until the 11th. Smith did meet Forrest, but the result was decidedly in Forrest's favor.
Sherman had written a letter to Banks, proposing a co-operative movement with him against Shreveport, subject to my approval. I disapproved of Sherman's going himself, because I had other important work for him to do, but consented that he might send a few troops to the aid of Banks, though their time to remain absent must be limited. We must have them for the spring campaign. The trans-Mississippi movement proved abortive.
My eldest son, who had accompanied me on the Vicksburg campaign and siege, had while there contracted disease, which grew worse, until he had grown so dangerously ill that on the 24th of January I obtained permission to go to St. Louis, where he was staying at the time, to see him, hardly expecting to find him alive on my arrival. While I was permitted to go, I was not permitted to turn over my command to any one else, but was directed to keep the headquarters with me and to communicate regularly with all parts of my division and with Washington, just as though I had remained at Nashville.
When I obtained this leave I was at Chattanooga, having gone there again to make preparations to have the troops of Thomas in the southern part of Tennessee co-operate with Sherman's movement in Mississippi. I directed Thomas, and Logan who was at Scottsboro, Alabama, to keep up a threatening movement to the south against J. E. Johnston, who had again relieved Bragg, for the purpose of making him keep as many troops as possible there.
I learned through Confederate sources that Johnston had already sent two divisions in the direction of Mobile, presumably to operate against Sherman, and two more divisions to Longstreet in East Tennessee. Seeing that Johnston had depleted in this way, I directed Thomas to send at least ten thousand men, besides Stanley's division which was already to the east, into East Tennessee, and notified Schofield, who was now in command in East Tennessee, of this movement of troops into his department and also of the reinforcements Longstreet had received. My object was to drive Longstreet out of East Tennessee as a part of the preparations for my spring campaign.
About this time General Foster, who had been in command of the Department of the Ohio after Burnside until Schofield relieved him, advised me that he thought it would be a good thing to keep Longstreet just where he was; that he was perfectly quiet in East Tennessee, and if he was forced to leave there, his whole well-equipped army would be free to go to any place where it could effect the most for their cause. I thought the advice was good, and, adopting that view, countermanded the orders for pursuit of Longstreet.