As soon as it was definitely known at Knoxville that Longstreet was over the Holston, Burnside went to the front at Lenoir's to take command in person. [Footnote: Burnside's Report, Official Records, vol. xxxi. pt. i. p. 273.] He left General Parke as chief of staff in general charge of affairs at headquarters, with Captain Poe in charge of the engineer work of preparing lines of defence connecting the forts already planned and partly constructed. Wilson and Dana stayed in Knoxville till the 15th, and then rode rapidly to the westward, passing around Longstreet's columns and rejoining Grant at Chattanooga on the night of the 17th, with latest assurances from Burnside that he would hold Knoxville stubbornly. Longstreet's tactics were to move one of his infantry divisions directly at Burnside's position, while with the other he turned its flank and sought to get to the rear. Burnside met the plan by the analogous one of alternate withdrawals of a division, one holding the enemy at bay while the other took post in echelon in the rear and opposed the flanking column till a concentration could be made. At Campbell's Station Longstreet attacked with vigor, determined to finish matters with the force before him. Ferrero's division of the Ninth Corps had now joined. Hartranft repulsed an attack by McLaws, whilst the trains and the division of Ferrero passed on, and Ferrero took a strong position half a mile in rear covering the junction of roads. White then retired and came into line on Ferrero's left. When these were solidly in place Hartranft took an opportune moment to withdraw and came into line on the left of White. The manoeuvres were perfectly performed, and the fighting of our troops had been everything that could be desired, meeting and matching Longstreet's veterans in a way to establish the soldierly reputation of all. The comparatively new organization of the Twenty-third Corps proved itself equal to the best, and Burnside declared that he could desire no better soldiers. The same tactics were continued through the day, and Burnside followed the hard labor and the fighting of the day with a night march which brought him to Knoxville on the morning of the 17th. [Footnote: Official Records, vol. xxxi. pt. i. pp. 274, 275, 296.] He had personally handled his little army through the day with coolness and success, and had raised to enthusiasm the confidence and devotion of his men. Each side had a casualty list of about 300.