In the meanwhile there was continuous battling all along the Richmond and Petersburg lines, which covered a space of more than thirty miles. The sharpshooting was incessant, the bombardment scarcely less so. But Grant was not yet ready to make another determined assault upon Lee's works, or in any other way to bring on a battle in earnest.
The defeat and driving away of Hunter from the Valley was a painful miscarriage of the plans with which the lieutenant general had hoped to conduct the campaign. So long as Early should remain in the Valley it was obvious that continual raids upon Washington were not only possible but probable, and that these raids or even the possibility of them must seriously impair Grant's strength at Petersburg. Accordingly, Grant decided that his first care now must be to regain possession of the valley of Virginia, and to hold that region irresistibly against Confederate invasion. To accomplish this he sent for General Sheridan and placed under his command a force of 30,000 men, or nearly four times as many as those with which Early could oppose him. With a force so overwhelming, Sheridan was ordered completely to clear the valley of Confederate troops, to cut off all supplies that might come from that fertile region for the support of Lee's army, and permanently to render that pathway toward the north a no-thoroughfare to the Confederates.
Grant's purpose looked to a campaign of utter and complete destruction. In his orders to Sheridan he said, "In pushing up the Shenandoah Valley, where it is expected you will have to go first or last, it is desirable that nothing should be left to invite the enemy to return. Take all provisions, forage and stock wanted for the use of your command. Such as cannot be consumed destroy. It is not desirable that the buildings should be destroyed—they should rather be protected; but the people should be informed that so long as an army can subsist among them recurrences of these raids must be expected; and we are determined to stop them at all hazards."
Up to this time General Halleck, who was acting as adjutant general, though no longer in command, had continued in annoying ways to interfere with Grant's orders and proceedings. A dispatch from Mr. Lincoln warned Grant that certain of his orders would not be carried out unless he, Grant, should personally see to their execution. This gave Grant his opportunity, once for all, to teach Halleck the bitter lesson that it was now the Galena clerk who had the right to command. Grant went to Washington and so far asserted himself that Halleck sent him a message of complete submission, and thereafter executed the orders of the commanding general, instead of criticizing them and interfering with them.
Grant's instructions to Sheridan were to put himself south of the Confederates, and to follow them to the death wherever they might go. Having 30,000 men with whom to chase 8,000 Sheridan's task in the execution of this order was not a difficult one.
Early lay at this time just south of the Potomac, a little way above Harper's Ferry, and was drawing his supplies from Maryland by cavalry operations in that quarter. Sheridan promptly pushed southward toward Winchester and Early retired to that point to await reinforcements from Lee. Early retreated as far as Fisher's Hill, east of Winchester, and there took up a strong position, offering battle to his adversary while waiting to be reinforced. There Sheridan attacked Early on the twenty-first of August and was beaten off by the Confederates with a loss of two or three hundred men. Sheridan thereupon retired to Hall Town, destroying as he went "everything eatable."
Then occurred one of the odd situations of the war. For three or four weeks, Early with less than 8,000 men was practically besieging Sheridan with more than 30,000, and in the meantime keeping Washington in a condition of chronic fright by threatening raids into Maryland, West Virginia and Pennsylvania, by breaking up the Baltimore and Ohio railroad and the Chesapeake and Ohio canal, and in other ways behaving himself precisely as he might have done had his force been four times that of Sheridan's, instead of being, as it was in fact, one fourth as great.
Why Sheridan with his enormously superior force did not at this time fall upon Early and crush him must always be a puzzling question to the historian and the military critic. Whatever the explanation may be, the fact is that during all these weeks Sheridan was standing at bay in the hope that Grant's operations before Petersburg might compel Lee to withdraw Early and his small force from the Valley. So far from driving Early out of that region Sheridan stood upon the defensive in order that Early might not drive him out instead.
At last Lee recalled to Petersburg the troops he had sent to Early's reinforcement, and about the same time Early divided his forces, sending a large part of them to Martinsburg, twenty miles or so north of Winchester. Here was a great opportunity and Grant promptly ordered Sheridan to take advantage of it. On the nineteenth of September Sheridan advanced with all his force upon Winchester, which place Early was defending east of the town. Promptly discovering the purpose of Sheridan's movement, Early recalled his troops from Martinsburg, and concentrated all the force he had in front of Winchester. A fierce and desperate battle ensued in which the Federal loss was about 5,000 men, and the Confederate loss about 4,000. In the end the enormous superiority of numbers on the Federal side prevailed, and Early was driven into retreat up the Valley. But the retreat was made in good order, and all the trains were saved.
Early retired again to Fisher's Hill, where the Valley is about four miles in width, and there took up a strong position for resistance. There on the twenty-second of September Sheridan again assailed him in overwhelming force, and after a stubborn fight drove him again into retreat up the Valley, but failed in a deliberately formed plan for capturing the meager Confederate force. During the next three or four days Early continued his retreat until he reached Port Republic, and the fighting, though irregular, was continuous.