"My idea from the start has been to beat Lee's army, if possible, north of Richmond; then, after destroying his lines of communication on the north side of the James River, to transfer the army to the south side and besiege Lee in Richmond, or follow him south if he should retreat. I now find, after over thirty days of trial, the enemy deems it of the first importance to run no risks with the armies they now have. They act purely on the defensive behind breastworks, or feebly on the offensive immediately in front of them, and where, in case of repulse, they can instantly retire behind them. Without a greater sacrifice of human life than I am willing to make, all cannot be accomplished that I had designed outside of the city."
During the week succeeding the severe repulse at Cold Harbor, which closed what may be summed up as Grant's campaign against Richmond, he made his preparations to enter upon the second element of his general plan, which may be most distinctively denominated the siege of Petersburg, though, in fuller phraseology, it might be called the siege of Petersburg and Richmond combined. But the amplification is not essential; for though the operation and the siege-works embraced both cities, Petersburg was the vital and vulnerable point. When Petersburg fell, Richmond fell of necessity. The reason was, that Lee's army, inclosed within the combined fortifications, could only be fed by the use of three railroads centering at Petersburg; one from the southeast, one from the south, and one with general access from the southwest. Between these, two plank roads added a partial means of supply. Thus far, Grant's active campaign, though failing to destroy Lee's army, had nevertheless driven it into Richmond, and obviously his next step was either to dislodge it, or compel it to surrender.
Cold Harbor was about ten miles from Richmond, and that city was inclosed on the Washington side by two circles of fortifications devised with the best engineering skill. On June 13, Grant threw forward an army corps across the Chickahominy, deceiving Lee into the belief that he was making a real direct advance upon the city; and so skilfully concealed his intention that by midnight of the sixteenth he had moved the whole Union army with its artillery and trains about twenty miles directly south and across the James River, on a pontoon bridge over two thousand feet long, to City Point. General Butler, with an expedition from Fortress Monroe, moving early in May, had been ordered to capture Petersburg; and though he failed in this, he had nevertheless seized and held City Point, and Grant thus effected an immediate junction with Butler's force of thirty-two thousand. Butler's second attempt to seize Petersburg while Grant was marching to join him also failed, and Grant, unwilling to make any needless sacrifice, now limited his operations to the processes of a regular siege.
This involved a complete change of method. The campaign against Richmond, from the crossing of the Rapidan and battle of the Wilderness, to Cold Harbor, and the change of base to City Point, occupied a period of about six weeks of almost constant swift marching and hard fighting. The siege of Petersburg was destined to involve more than nine months of mingled engineering and fighting. The Confederate army forming the combined garrisons of Richmond and Petersburg numbered about seventy thousand. The army under Grant, though in its six weeks' campaign it had lost over sixty thousand in killed, wounded, and missing, was again raised by the reinforcements sent to it, and by its junction with Butler, to a total of about one hundred and fifty thousand. With this superiority of numbers, Grant pursued the policy of alternately threatening the defenses of Lee, sometimes south, sometimes north of the James River, and at every favorable opportunity pushing his siege-works westward in order to gradually gain and command the three railroads and two plank roads that brought the bulk of absolutely necessary food and supplies to the Confederate armies and the inhabitants of Petersburg and Richmond. It is estimated that this gradual westward extension of Grant's lines, redoubts, and trenches, when added to those threatening Richmond and Petersburg on the east, finally reached a total development of about forty miles. The catastrophe came when Lee's army grew insufficient to man his defensive line along this entire length, and Grant, finding the weakened places, eventually broke through it, compelling the Confederate general and army to evacuate and abandon both cities and seek safety in flight.
The central military drama, the first two distinctive acts of which are outlined above, had during this long period a running accompaniment of constant under-plot and shifting and exciting episodes. The Shenandoah River, rising northwest of Richmond, but flowing in a general northeast course to join the Potomac at Harper's Ferry, gives its name to a valley twenty to thirty miles wide, highly fertile and cultivated, and having throughout its length a fine turnpike, which in ante-railroad days was an active commercial highway between North and South. Bordered on the west by the rugged Alleghany Mountains, and on the east by the single outlying range called the Blue Ridge, it formed a protected military lane or avenue, having vital relation to the strategy of campaigns on the open Atlantic slopes of central Virginia. The Shenandoah valley had thus played a not unimportant part in almost every military operation of the war, from the first battle of Bull Run to the final defense of Richmond.
The plans of General Grant did not neglect so essential a feature of his task. While he was fighting his way toward the Confederate capital, his instructions contemplated the possession and occupation of the Shenandoah valley as part of the system which should isolate and eventually besiege Richmond. But this part of his plan underwent many fluctuations. He had scarcely reached City Point when he became aware that General Lee, equally alive to the advantages of the Shenandoah valley, had dispatched General Early with seventeen thousand men on a flying expedition up that convenient natural sally-port, which was for the moment undefended.
Early made such speed that he crossed the Potomac during the first week of July, made a devastating raid through Maryland and southern Pennsylvania, threatened Baltimore, and turning sharply to the south, was, on the eleventh of the month, actually at the outskirts of Washington city, meditating its assault and capture. Only the opportune arrival of the Sixth Army Corps under General Wright, on the afternoon of that day, sent hurriedly by Grant from City Point, saved the Federal capital from occupation and perhaps destruction by the enemy.
Certain writers have represented the government as panic-stricken during the two days that this menace lasted; but neither Mr. Lincoln, nor Secretary Stanton, nor General Halleck, whom it has been even more the fashion to abuse, lacked coolness or energy in the emergency. Indeed, the President's personal unconcern was such as to give his associates much uneasiness. On the tenth, he rode out as was his usual custom during the summer months, to spend the night at the Soldiers' Home, in the suburbs; but Secretary Stanton, learning that Early was advancing in heavy force, sent after him to compel his return to the city; and twice afterward, intent on watching the fighting which took place near Fort Stevens, he exposed his tall form to the gaze and bullets of the enemy in a manner to call forth earnest remonstrance from those near him.
The succeeding military events in the Shenandoah valley must here be summed up in the brief statement that General Sheridan, being placed in command of the Middle Military Division and given an army of thirty or forty thousand men, finally drove back the Confederate detachments upon Richmond, in a series of brilliant victories, and so devastated the southern end of the valley as to render it untenable for either army; and by the destruction of the James River Canal and the Virginia Central Railroad, succeeded in practically carrying out Grant's intention of effectually closing the avenue of supplies to Richmond from the northwest.