American Civil War
Friendly Fire: The Death of Stonewall Jackson at Chancellorsville
Apr 20, 2026
The Hammer and the Anvil: Grant's Overland Campaign of 1864
2 min read · Intermediate
grantoverland-campaigncivil-war1864wildernessspotsylvaniaattrition
Grant's Overland Campaign drove Lee to the Petersburg siege lines — from which the Confederacy never escaped.↗
May–June 1864: Grant drove Lee's army through six weeks and five major battles, absorbing 55,000 casualties and refusing to stop. The Overland Campaign was attrition as deliberate strategy — and it worked.
In May 1864, Ulysses Grant took personal command in the Eastern Theater and spent six weeks fighting the most sustained military campaign of the Civil War — the Overland Campaign. He suffered 55,000 casualties. He did not stop.
The Strategy
Grant's objective was not a city or a railroad junction. It was Robert E. Lee's army. Grant understood that the Confederacy could not replace its losses in trained soldiers and experienced officers. Attrition, applied relentlessly, would grind the Confederate army to dust — provided the Union Army could sustain the political will to keep fighting.
The Overland Campaign began in the Wilderness on May 5, 1864. Over six weeks, Grant fought Lee at the Wilderness, Spotsylvania Court House, the North Anna River, and Cold Harbor before crossing the James River to begin the Petersburg siege.
The Math
The numbers are stark. The Union suffered approximately 55,000 casualties in the Overland Campaign. This represented roughly 45 percent of the force that began the operation. By any traditional military metric, it was catastrophic.
But Lee's losses — approximately 33,000, or around 46 percent of his force — were proportionally similar and strategically far more damaging. The Union could draw on a population of 22 million and an industrial base capable of equipping new recruits. The Confederacy had neither. Every veteran Confederate soldier killed or disabled in the Overland Campaign represented a loss the South could not replace at equivalent quality.
Grant's willingness to accept losses that would have caused his predecessors to pause and reorganize was not callousness — it was a calculation about the strategic mathematics of attrition. His critics called him a butcher. Lincoln backed him.
The Outcome
By mid-June 1864, Lee's army was locked into the Petersburg siege lines — unable to maneuver, unable to attack, slowly starving. The Overland Campaign had accomplished exactly what Grant intended: it had driven Lee to the wall and kept him there.
The campaign that followed — nine months of siege — was the grindstone Grant had built. Appomattox was the inevitable result.
