When the advance of the Army of the Cumberland began it was the desire of General Rosecrans, commanding the Army of the Cumberland, to confuse and mislead Bragg, commanding the Confederate Army. In that he was signally successful. Sending a portion of his army, cavalry, infantry and artillery, across the Cumberland mountains into the valley of the Tennessee north of Chattanooga to threaten that city from the north, he led his main army across the Tennessee at Bridgeport, Tennessee, and Caperton's Ferry, Alabama, and crossing the mountains into Lookout Valley, swung his army to the south and west of Chattanooga, rendering the occupation of that city untenable by Bragg with his line of supplies threatened in his rear. From my slight acquaintance with famous military campaigns I believe that the display of grand tactics by Rosecrans fairly rivals that of anything in history, and was as brilliant and successful as the famous campaign of John Churchill, the Duke of Marlborough, before the battle of Blenheim in 1704. Instead of commenting on the campaign of the Army of the Cumberland against Chattanooga, which I freely grant that from a technical military point of view I am incapable of, I prefer to dwell upon the movements of my own regiment in that campaign. In the afternoon of August 16th, 1863, my regiment, attached to Wilder's Brigade, moved out from Dechard, and climbed the Cumberland Mountains to University Place, and crossing into the Sequatchie Valley, climbed and crossed Walden's Ridge, reaching Poe's Tavern in the Tennessee Valley, twelve miles north of Chattanooga, on the 21st of August; on the 22nd, Wilder and his brigade went to a point north of Chattanooga to directly threaten that city, while my regiment went to Harrison's Landing, threatening to cross at that point fifteen miles north of Chattanooga. We found the enemy in earthworks on the edge of the river on the opposite bank, with quite a heavy fort on the hills back from the river, mounting three guns en barbette. Our Spencer rifles carried over the river easily, nearly a mile wide, and the Confederates were kept closely within their rifle pits by our sharpshooters.