As soon as this information was obtained Torbert moved quickly through the toll-gate on the Front Royal and Winchester road to Newtown, to strike the enemy's flank and harass him in his retreat, Lowell following up through Winchester, on the Valley pike; Crook was turned to the left and ordered to Stony Point, while Emory and Wright, marching to the left also, were directed to take post on the night of the 11th between the Millwood and Front Royal roads, within supporting distance of Crook. Merritt meeting some of the enemy's cavalry at the tollgate, drove it in the direction of Newtown till it got inside the line of Gordon's division of infantry, which had been thrown out and posted behind barricades to cover the flank of the main force in its retreat. A portion of Merritt's cavalry attacked this infantry and drove in its skirmish-line, and though not able to dislodge Gordon, Merritt held the ground gained till night-fall, when the Confederate infantry moved off under cover of darkness to Hupp's Hill, between Strasburg and Cedar Creek
The next morning Crook marched from Stony Point to Cedar Creek, Emory followed with Dwight, and the cavalry moved to the same point by way of Newtown and the Valley pike, the Sixth Corps following the cavalry. That night Crook was in position at Cedar Creek, on the left of the Valley pike, Emory on the right of the pike, the Sixth Corps on the right of Emory, and the cavalry on the flanks. In the afternoon a heavy skirmish-line had been thrown forward to the heights on the south side of Cedar Creek, and a brisk affair with the enemy's pickets took place, the Confederates occupying with their main force the heights north of Strasburg. On the morning of the 13th my cavalry went out to reconnoitre toward Strasburg, on the middle road, about two and a half miles west of the Valley pike, and discovered that Early's infantry was at Fisher's Hill, where he had thrown up behind Tumbling Run earthworks extending clear across the narrow valley between the Massanutten and North mountains. On the left of these works he had Vaughan's, McCausland's, and Johnson's brigades of cavalry under General Lomax, who at this time relieved General Ramseur from the command of the Confederate mounted forces.
Within the past day or two I had received information that a column of the enemy was moving up from Culpeper Court House and approaching Front Royal through Chester Gap, and although the intelligence was unconfirmed, it caused me much solicitude; for there was strong probability that such a movement would be made, and any considerable force advancing through Front Royal toward Winchester could fall upon my rear and destroy my communication with Harper's Ferry, or, moving along the base of Massanutten Mountain, could attack my flank in conjunction with the force at Fisher's Hill without a possibility of my preventing it.
Neither Wilson's cavalry nor Grower's infantry had yet joined me, and the necessities, already explained, which obliged me to hold with string garrisons Winchester and other points heretofore mentioned. had so depleted my line of battle strength that I knew the enemy would outnumber me when Anderson's corps should arrive in the valley. I deemed it advisable, therefore, to act with extreme caution, so, with the exception of a cavalry reconnoissance on the 13th, I remained on the defensive, quietly awaiting developments. In the evening of that day the enemy's skirmishers withdrew to Tumbling Run, his main force remaining inactive behind the intrenchments at Fisher's Hill waiting for the arrival of Anderson.
The rumors in regard to the force advancing from Culpeper kept increasing every hour, so on the morning of the 14th I concluded to send a brigade of cavalry to Front Royal to ascertain definitely what was up. At the same time I crossed the Sixth Corps to the south side of Cedar Creek, and occupied the heights near Strasburg. That day I received from the hands of Colonel Chipman, of the Adjutant-General's Department, the following despatch, to deliver which he had ridden in great haste from Washington through Snicker's Gap, escorted by a regiment of cavalry:
"CITY POINT, August 12, 1864—9 A. M.
"MAJOR-GENERAL HALLECK
"Inform General Sheridan that it is now certain two (2) divisions of infantry have gone to Early, and some cavalry and twenty (20) pieces of artillery. This movement commenced last Saturday night. He must be cautious, and act now on the defensive until movements here force them to detach to send this way. Early's force, with this increase, cannot exceed forty thousand men, but this is too much for General Sheridan to attack. Send General Sheridan the remaining brigade of the Nineteenth Corps.
"I have ordered to Washington all the one-hundred-day men. Their time will soon be out, but for the present they will do to serve in the defenses.
"U. S. GRANT, Lieutenant-General."
The despatch explained the movement from Culpeper, and on the morning of the 15th Merritt's two remaining brigades were sent to Front Royal to oppose Anderson, and the Sixth Corps withdrawn to the north side of Cedar Creek, where it would be in a position enabling me either to confront Anderson or to act defensively, as desired by General Grant.
To meet the requirements of his instructions I examined the map of the valley for a defensive line—a position where a smaller number of troops could hold a larger number—for this information led me to suppose that Early's force would greatly exceed mine when Anderson's two divisions of infantry and Fitzhugh Lee's cavalry had joined him. I could see but one such position, and that was at Halltown, in front of Harper's Ferry. Subsequent experience convinced me that there was no other really defensive line in the Shenandoah Valley, for at almost any other point the open country and its peculiar topography invites rather than forbids flanking operations.
This retrograde movement would also enable me to strengthen my command by Grower's division of the Nineteenth Corps and Wilson's cavalry, both of which divisions were marching from Washington by way of Snicker's Gap.
After fully considering the matter, I determined to move back to Halltown, carrying out, as I retired, my instructions to destroy all the forage and subsistence the country afforded. So Emory was ordered to retire to Winchester on the night of the 15th, and Wright and Crook to follow through Winchester to Clifton the next night.