Battle of The Wilderness - Aftermath

Aftermath

Although the Wilderness is usually described as a draw, it could be called a tactical Confederate victory, but a strategic victory for the Union army. Lee inflicted heavy numerical casualties (see estimates below) on Grant, but as a percentage of Grant's forces they were smaller than the percentage of casualties suffered by Lee's smaller army. And, unlike Grant, Lee had very little opportunity to replenish his losses. Understanding this disparity, part of Grant's strategy was to grind down the Confederate army by waging a war of attrition. The only way that Lee could escape from the trap that Grant had set was to destroy the Army of the Potomac while he still had sufficient force to do so, but Grant was too skilled to allow that to happen. Thus, the Overland Campaign, initiated by the crossing of the Rappahannock, and opening with this battle, set in motion the eventual destruction of the Army of Northern Virginia.

Therefore, even though Grant withdrew at the end of the battle (which is usually the action of the defeated side), unlike his predecessors since 1861 Grant continued his campaign instead of retreating to the safety of Washington, D.C. The significance of Grant's advance was noted by James M. McPherson:

Both flanks had been badly bruised, and 17,500 casualties in two days exceeded the Confederate total by at least 7,000. Under such circumstances previous Union commanders in Virginia had withdrawn behind the nearest river. Men in the ranks expected the same thing to happen again. But Grant had told Lincoln "whatever happens, there will be no turning back."

While the armies skirmished warily on May 7, Grant prepared to march around Lee's right during the night to seize the crossroads village of Spotsylvania a dozen miles to the south. If successful, this move would place the Union army closer to Richmond than the enemy and force Lee to fight or retreat. All day Union supply wagons and the reserve artillery moved to the rear, confirming the soldiers' weary expectation of retreat. After dark the blue divisions pulled out one by one.

But instead of heading north, they turned south. A mental sunburst brightened their minds. It was not another "Chancellorsville ... another skedaddle" after all. "Our spirits rose," recalled one veteran who remembered this moment as a turning point in the war. Despite the terrors of the past three days and those to come, "we marched free. The men began to sing." For the first time in a Virginia campaign the Army of the Potomac stayed on the offensive after its initial battle.

— James M. McPherson, Battle Cry of Freedom