After the battle of Gettysburg, Lee started for the Potomac, which he crossed with some difficulty, but with little interruption from the Federals, above Harper’s Ferry, on July 14, 1863. The thwarted invader of Pennsylvania wished to get to the plains of Virginia as quickly as possible, but the Shenandoah was found to be impassable. Meade, in the mean time, had crossed the Potomac east of the Blue Ridge and seized the principal outlets from the lower part of the Valley. Lee, therefore, was compelled to continue his retreat up the Shenandoah until Longstreet, sent in advance with part of his command, had so blocked the Federal pursuit that most of the Confederate army was able to emerge through Chester Gap and move to Culpeper Court House. Ewell marched through Thornton’s Gap and by the 4th of August practically the whole Army of Northern Virginia was south of the Rapidan, prepared to dispute the crossing of that river. But Meade, continuing his flank pursuit, halted at Culpeper Court House, deeming it imprudent to attempt the Rapidan in the face of the strongly entrenched Confederates. In the entire movement there had been no fighting except a few cavalry skirmishes and no serious loss on either side.

On the 9th of September, Lee sent Longstreet and his corps to assist Bragg in the great conflict that was seen to be inevitable around Chattanooga. In spite of reduced strength, Lee proceeded to assume a threatening attitude toward Meade, and in October and early November there were several small but severe engagements as the Confederate leader attempted to turn Meade’s flank and force him back to the old line of Bull Run. On the 7th of November, Sedgwick made a brilliant capture of the redoubts on the Rappahannock, and Lee returned once more to his old position on the south side of the Rapidan. This lay between Barnett’s Ford, near Orange Court House (Lee’s headquarters), and Morton’s Ford, twenty miles below. Its right was also protected by entrenchments along the course of Mine Run. Against these, in the last days of November, Meade sent French, Sedgwick, and Warren. It was found impossible to carry the Confederate position, and on December 1st the Federal troops were ordered to recross the Rapidan. In this short campaign the Union lost sixteen hundred men and the Confederacy half that number. With the exception of an unsuccessful cavalry raid against Richmond, in February, nothing disturbed the existence of the two armies until the coming of Grant.

In the early months of 1864, the Army of the Potomac lay between the Rapidan and the Rappahannock, most of it in the vicinity of Culpeper Court House, although some of the troops were guarding the railroad to Washington as far as Bristoe Station, close to Manassas Junction. On the south side of the Rapidan, the Army of Northern Virginia was, as has been seen, securely entrenched. The Confederates’ ranks were thin and their supplies were scarce; but the valiant spirit which had characterized the Southern hosts in former battles still burned fiercely within their breasts, presaging many desperate battles before the heel of the invader should tread upon their cherished capital, Richmond, and their loved cause, the Confederacy.

Within the camp religious services had been held for weeks in succession, resulting in the conversion of large numbers of the soldiers. General Lee was a religious man. The influence of the awakening among the men in the army during this revival was manifest after the war was over, when the soldiers had gone back to civil life, under conditions most trying and severe. To this spiritual frame of mind may be credited, perhaps, some of the remarkable feats accomplished in subsequent battles by the Confederate army.

On February 29, 1864, the United States Congress passed law reviving the grade of lieutenant-general, the title being intended for Grant, who was made general-in-chief of the armies of the United States. Grant had come from his victorious battle-grounds in the West, and all eyes turned to him as the chieftain who should lead the Union army to success. On the 9th of March he received his commission. He now planned the final great double movement of the war. Taking control of the whole campaign against Lee, but leaving the Army of the Potomac under Meade’s direct command, he chose the strongest of his corps commanders, W. T. Sherman, for the head of affairs in the West. Grant’s immediate objects were to defeat Lee’s army and to capture Richmond, the latter to be accomplished by General Butler and the Army of the James; Sherman’s object was to crush Johnston, to seize that important railroad center, Atlanta, Georgia, and, with Banks’ assistance, to open a way between the Atlantic coast and Mobile, on the Gulf, thus dividing the Confederacy north and south, as the conquest of the Mississippi had parted it east and west. It was believed that if either or both of these campaigns were successful, the downfall of the Confederacy would be assured.

On a recommendation of General Meade’s, the Army of the Potomac was reorganized into three corps instead of the previous five. The Second, Fifth, and Sixth corps were retained, absorbing the First and Third.

Hancock was in command of the Second; Warren, the Fifth; and Sedgwick, the Sixth. Sheridan was at the head of the cavalry. The Ninth Corps acted as a separate army under Burnside, and was now protecting the Orange and Alexandria Railroad. As soon as Meade had crossed the Rapidan, Burnside was ordered to move promptly, and he reached the battlefield of the Wilderness on the morning of May 6th. On May 24th his corps was assigned to the Army of the Potomac. The Union forces, including the Ninth Corps, numbered about one hundred and eighteen thousand men.

The Army of Northern Virginia consisted of three corps of infantry, the First under Longstreet, the Second under Ewell, and the Third under A. P. Hill, and a cavalry corps commanded by Stuart. A notable fact in the organization of the Confederate army was the few changes made in commanders. The total forces under Lee were about sixty-two thousand.

After assuming command, Grant established his headquarters at Culpeper Court House, whence he visited Washington once a week to consult with President Lincoln and the Secretary of War. He was given full authority, however, as to men and movements, and worked out a plan of campaign which resulted in a series of battles in Virginia unparalleled in history. The first of these was precipitated in a dense forest, a wilderness, from which the battle takes its name.

Grant decided on a general advance of the Army of the Potomac upon Lee, and early on the morning of May 4th the movement began by crossing the Rapidan at several fords below Lee’s entrenched position, and moving by his right flank. The crossing was effected successfully, the line of march taking part of the Federal troops over a scene of defeat in the previous spring. One year before, the magnificent Army of the Potomac, just from a long winter’s rest in the encampment at Falmouth on the north bank of the Rappahannock, had met the legions of the South in deadly combat on the battlefield of Chancellorsville. And now Grant was leading the same army, whose ranks had been freshened by new recruits from the North, through the same field of war.